FAQs

Dosing (11)

You may switch to the new formula at any point during your dosing schedule as long as is it stays consistent with your maintenance routine.

We improved the formula based on many of our longtime customers who required better dosing options for smaller tanks. Although many of our users also have very large aquariums, we’ve heard that it’s more difficult to dose for those smaller tanks using our old formula. The new formula has been improved to be more specific for each type of tank as well to improve the results for those smaller tanks. In some cases, dosing may be higher if you’re one of customers that has a very large, thriving tank. These voluminous tanks may require higher dosing than your previous old Nualgi formula.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Freshwater Dosage
Dose 5ml of Nualgi for every 20 gallons of freshwater every week.

Saltwater Dosage
Dose 5ml of Nualgi for every 30 gallons of saltwater per week.

Do not overdose! Adding extra will actually reduce the effectiveness of Nualgi Aquarium. 

20 drops from the pipette included with your order = 1 ML

 

DOSAGE REFERENCE TABLE:

Please log in to rate this.
3 people found this helpful.

0 Comments - Leave a Comment

We recommend that you continue with your normal water change routine until your water is clear and your tank is algae free. Make sure that you dose Nualgi after your water change. Once your tank is looking good and algae free, you can experiment with less frequent water changes. Trialists have been able to gradually delay water changes from once per week to once per 3 weeks or longer.

Nualgi works on the nutrients buried in the substrate or pores of your rocks. This may initially show up as more algae build up in your tank after the first 1-2 doses. If this happens in your tank then we recommend additional water changes to get rid of some of the nutrients being purged by Nualgi.

Please log in to rate this.
2 people found this helpful.

0 Comments - Leave a Comment

Nualgi should be dosed after the tank has finished cycling and you have introduced fish into your tank successfully.  Nualgi produces diatoms that are consumed by zooplankton and zooplankton are consumed by fish. So if you have no fish, coral or zooplankton in your tank then Nualgi will cause excess nutrients.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

UV is used to kill bacteria and cyanobacteria. It does not kill diatoms but may reduce the growth rates as diatoms need many bacteria to grow.

Please log in to rate this.
2 people found this helpful.

0 Comments - Leave a Comment

Sometimes it can be hard to maintain a daily dosing schedule, but those who have an ATO may benefit more from a steady dosing coming from the ATO.  It’s important to make sure that there is enough flow in the ATO to insure no settling occurs.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Yes.  As the tank cleans up and the water becomes clear with minimal algae build up, you can experiment with removing GFO.

Please log in to rate this.
1 person found this helpful.

0 Comments - Leave a Comment

Correct dosage of Nualgi is generally sufficient to re-establish the natural food chain in the water thereby precluding the need to use other nutrients or nutrient balancing products. However it is not advisable to make abrupt changes to current practices that are working. As Nualgi starts to deliver results, you may carefully experiment in reducing the dosage of other nutrients.

As Nualgi produces food for corals, it leads to coral growth and polyp extension. Corals also stay open longer when using Nualgi. This increases the demand for Calcium in tanks with a large number of hard and soft corals. This can throw off the pH and dKH levels as they are inter-connected with Calcium. We recommend that for such tanks, Calcium levels should be carefully monitored and boosted when necessary.

Please log in to rate this.
4 people found this helpful.

0 Comments - Leave a Comment

Yes, as you start it is advisable to have phosphate and nitrate removal media. Once Nualgi balances the tank you can experiment with removing bio pellets.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nualgi contains calcium in bio-available form and may reduce the amount of Kalkwasser needed. If you are already using Kalkwasser, we recommend that you monitor the water levels and add Kalkwasser as needed to maintain calcium and alkalinity. If you are using a dosing pump, drip line or adding it to an auto top off you will need to make adjustments based on how Nualgi impacts calcium and alkalinity levels in your tank.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Basics (13)

Nualgi is a patented formula of nano silica based nano nutrient in size range of 5-100 nm. The silica becomes both the carrier for other nutrients and the nutrient by itself.

It contains a special formulation of Fe, Mn, Zn, Co, Cu, Mo, B, S, Ca, Mg, P, K & Si

Learn More

Please log in to rate this.
3 people found this helpful.

0 Comments - Leave a Comment

Upon application of Nualgi Aquarium, the Nano Silica base within the Nualgi formula carries nutrients to Diatom Algae which then begin to multiply. These new Diatom Algae consume N (Nitrogen) and P (Phosphorous), robbing the nuisance algae of the chemicals they need to grow. Diatoms also release O2 & consume CO2, thus increasing the dissolved oxygen levels and helps aerobic bacteria break down organic matter. As this occurs, zooplankton grow by consuming the Diatoms, and finally, zooplankton get consumed by fish and coral because that is their favorite live food. Hooray for free fish food.

View Extended Answer

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nualgi Aquarium restores the natural food chain in water and prevents growth of nuisance algae as diatoms produced by Nualgi out-compete these nuisance algae for nutrients.

Traditionally, aquarists have considered nitrates and phosphates to be a problem and have been striving to control them through water change and other products aimed at this solving this issue.

Nualgi believes that N and P are not pollutants. Without N and P, nothing would grow, not even bacteria or coral. What level of N and P is acceptable is a matter of debate. When you can grow enough diatoms to consume nutrients, no level is too high.

Excess P will cause Cyanobacteria to bloom and this will deprive coral of oxygen. The problem is therefore cyano and not the P level. Diatoms consume N and P and they are consumed by zoo-plankton and fish. So some of the N and P is locked up in the new biomass created. To the extent diatoms are consumed by fish, use of fish feed can be reduced and that will limit the input of new N and P.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nano refers to the metric prefix for 10^-9  and means one-billionth of something. Nanoscience is the study of structures made small enough to take on new properties. For example, nano-particles of gold appear red in color and melt at significantly lower temperatures than normal gold slabs (~300 °C as compared to 1064 °C)[1].

Traditional products contain either:

  • Coarse particles with a diameter of 2,500 to 10,000 nanometers
  • Fine particles with a diameter of 100 to 2,500 nanometers.

Nualgi particles are 5 to 50 nanometers in diameter (1 millimeter = 1,000,000 nanometers).

Nano particles are known to have different properties than larger sized particles of the same element [2]. These tiny particles have a larger active surface area and can suspend themselves in liquid and are therefore more efficient by being bioavailable.

Scale of Nano-Technology

Scale of Nano-Technology

Bioavailability is a measurement of the rate and extent to which a drug or nutrient reaches the systemic circulation.  For example a drug injected intravenously is much more bioavailable as compared to a drug ingested orally.

For plants and organisms, it is a significant scientific challenge to provide nutrients in bioavailable form.  Nualgi is the only product of its kind that effectively addresses this challenge in a water body.  It’s nutrient particles are small enough to suspend themselves in the water column and are therefore more available for diatom algae to bloom.

Sources:

[1]  http://journals.aps.org/pra/abstract/10.1103/PhysRevA.13.2287

[2]  http://en.wikipedia.org/wiki/Nanoparticle#Properties

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Freshwater and Saltwater are inherently different, down to the way that the Nitrogen Cycle circulates in each tank. In order to maximize the effects of Nualgi Aquarium for tank owners, we needed to specialize our formula and product to work with both categories of tanks. This way, aquarium owners can be confident about the amount they dose, the effect on their tank inhabitants, and the general balance of their tank environment.

Feedback from customers and improved nano-technology were the driving force behind the creation of the Nualgi Aquarium Freshwater and Saltwater products. Aquarium owners desired an easier-to-use product, and once it became apparent how our improved technology could be specialized, it was essential that we passed along our new technology to aquarium users worldwide. Plus, there are no confusing calculations! Two easy-to-use products with dosing instructions and a pipette for any size of tank.

Check out the Main Product Page to see details on each product!

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Alongside the rest of the Nualgi Aquarium benefits, reef tanks experience a special boost in beauty from dosing our Saltwater formula. Specifically, Nualgi Aquarium Saltwater helps all species of coral grow in vibrance and strength, and is reputed as one of the top coral nourishing products in the aquarium sphere. But don’t take it from us! Check out our user reviews that show coral growth results:

“Steroid for Corals” – Jorge K

Coral Testimonials

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nulagi will work well with planted aquariums as it provides more nutrients required for the growth of plants. While about 90% of the nutrients in Nualgi are being used up for diatom bloom, 10% would still be available for the plants in the aquarium. As nutrients in Nualgi are in bio available form, they are quickly absorbed by the macrophytes leading to healthier plants. Trace nutrients provided by Nualgi can be particularly deficient in the aquarium if soft water is being used for planted aquariums. As aquarists gain experience with Nualgi, they will be able to vary the dosage of other nutrients being added to the tank to maintain an ideal nutrient level.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nualgi is a nutrient mix to promote controlled growth of better species of diatoms in your tank. Diatoms consume nutrients from left over fish food and fish waste which deprives nuisance algae of the same nutrients. Nuisance algae are thus gradually starved. Diatoms are consumed by zooplankton and zooplankton by fish and coral.

For best results combine with good husbandry practices relating to feeding, lighting, water changes, cleaning, skimmer capacity, and filter media such as carbon filters and GFO.

Nualgi is not an algaecide and therefore its action is gradual. If you have had serious algae issues in the past or have trouble maintaining water parameters, please exercise caution and patience while starting with the supplement.
Some of the elements that inhibit diatom growth are high water temperatures (above 77) and presence of phenol and phenolic compounds in your tank.  
In a small number of cases, Nualgi can cause an increase in the nuisance algae. This issue has been reported by reef tank owners only. We believe that this is due to locked up nutrients in the substrate or rock which Nualgi purges. It can also happen when diatoms are not growing by addition of Nualgi (due to presence of phenols or water temperature being too high) but Nualgi is purging the nutrients from the substrate and rock.  
To lower the risk of this happening, we recommend a lower starting dose in reef tanks. If nuisance algae increase s as a result of the first or second Nualgi dose, then you should stop further dosing of Nualgi and contact us. If tank shows signs of improvement then you can gradually up the dosage over a 2 week period to bring it to recommended levels. The recommended dose in reef tanks is 1 teaspoon (5 ml) per 30 gallons per week. However we recommend that you start with .5 teaspoon (2.5 ml) per 30 gallons per week.  
Where possible, we recommend a daily dosage of Nualgi instead of a weekly dose. Daily dosing will further reduce your downside risk of increased algae. Daily dose is one-seventh of the weekly dose. Should you see increased algae after the first few doses, please stop further dosing of Nualgi and contact us.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Not all diatoms are the same. There are over 200 genera of living of diatoms. When Nualgi is used better species of Diatoms will grow and these will out compete the present species growing in your tank. The new species will be better food for zooplankton, so they will be consumed. In tanks in which Nualgi is being used, there are no complaints of excess diatoms, since they are being consumed. As you are having a problem with accumulation of diatoms, it is possible that the diatoms growing in your tank are not being consumed, as they may be inferior species. It is also possible that the brown algae growing in your tank is not diatoms at all but some other algae that is also brown. If so, Nualgi will help clear it up.

Please log in to rate this.
1 person found this helpful.

0 Comments - Leave a Comment

Green and Blue-Green algae proliferates in warmer temperatures while diatoms like lower temperatures. This is one of the reasons why natural lakes are so much clearer in spring than in summer. For algae to grow, it needs nutrients (N and P), light and warm water.

For Nualgi to help prevent nuisance algae from taking hold in your tank, recommend maintaining your water temperature at 75-76 degrees F.

What about lighting?

Beside water temperature and nutrients, algae needs light to grow. We recommend around 8 hours of lighting for your tank. It is also important to ensure that the light is not too intense at the bottom of the tank near the substrate. Nualgi should be dosed early in the lighting cycle with at least 4 hours of lighting left to go.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Yellow color of your aquarium water suggests that you have a buildup of phenols, phenolic compounds, carbohydrates from secretion of algae etc. This can be detected by taking a water sample from your aquarium and placing it in a white dish. At higher levels they can be harmful to your tank. You can read more on reef dreams

Phenol and phenolic compounds inhibit the growth of diatoms and therefore render Nualgi ineffective!

To remove these compounds from your water, you will need to perform a series of rapid water changes to dilute them out of your water and ensure your filter media is clean, your skimmer is working well, is of sufficient capacity relative to your tank size, and you are changing your carbon filter in a timely manner. Once the water color is determined to be normal, you can begin the Nualgi dosing.

In planted aquariums the phenolic compounds are absorbed by the vacuoles in the leaf and stored safely; hence we do not see this issue in planted aquariums.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nualgi is a patented nano silica based nano nutrient formula in size range of 5-100 nm. The silica becomes both the carrier for other nutrients and the nutrient by itself. It is in a water dispersible particulate form having the important micronutrient -iron (0.01% to 50% of Fe) and  other micronutrients- Mn, Zn, Co, Cu, Mo, B, S, Ca, Mg, P, K,and mixtures thereof in the proportion 0.001% to 30% of the weight of silica.

Because of its nanosize, Nualgi is able to pervade very small spaces in the subsurface and remain suspended in water. This allows particles to travel farther than larger, macro-sized particles thereby increasing the bioavailability of the nutrients for easy absorption. The iron and other micronutrients in nano form cannot precipitate out or gel in the water as it happens when they are added directly as salts

Please log in to rate this.
1 person found this helpful.

0 Comments - Leave a Comment

Yes, Nualgi has other benefits besides algae control such as better fish health, higher dissolved oxygen levels , coral growth, polyp extension and lower levels of Co2, nitrates and phosphates. If your aquarium does not have an algae problem we recommend dosing 1/4 of the recommended dosage the first week. Monitor the changes that occur and adjust dosing based on the results. Increase the dosage a little each week until you work up to the recommended dose of 1-1.25ml per 30 gallons of water.

If you notice any negative impact to the tank, discontinue dosing and contact us immediately.

 

Users may notice a bloom of cyano/red slime algae on dosing Nualgi on the glass, rocks or sand bed. This is a positive sign as this is cyano that existed in the water column and the rock surfaces before Nualgi dosing and are now crashing out of the water. If this does not happen the cyano may manifest even more dangerously in the future affecting the fish and corals. The crashed out algae would be easier to wipe and this should be done frequently in the first few days from the glass and surfaces. We understand it looks ugly but it should be seen as a positive rather than a negative aspect of Nualgi. It is like the proverbial bitter medicine one needs to have to cure the illness.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Safety (8)

Nualgi is made with Nano Silica. This is amorphous silica of 100 nano meters or smaller particles. Crystalline silica of 1 micron (1000 nano meters ) or more may be carcinogenic but amorphous silica is safe.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Nualgi is not only safe for corals but helps them open up and grow. Nualgi produces diatoms which in turn consume CO2 in water. CO2 and water naturally react to form Carbonic Acid which is known to increase acidity in water and is the chief cause of ocean acidification and depletion of coral reefs (http://ocean.nationalgeographic.com/ocean/critical-issues-ocean-acidification/).

By consuming CO2, Nualgi improves the pH level of water which helps the corals thrive. Nualgi also produces diatoms which consume excess nutrients in water. Nutrients can promote rapid growth of algae and other organisms that can smother corals (Jones & Endean, 1976)

Please log in to rate this.
2 people found this helpful.

0 Comments - Leave a Comment

Yes, it’s safe for turtles and frogs as well, but there needs to be fish in order for the product to work. If there are no zooplankton or fish then Nualgi will just add excess nutrients and can increase algae growth.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

One of the most significant differences between Diatoms and other algae is that Diatoms are consumed by Zooplankton and Fish, so they do NOT die and decompose, so the DO does not decline when diatoms grow. The Carbon, N and P is consumed and the O2 remains behind in the water.

The reason why small and periodic dosing of Nualgi is necessary is to keep the diatom biomass steady, using the daily input of nutrients in the feces of the fish and uneaten food, large and irregular dosing can cause sudden boom and bust.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

There are a couple of possibilities:

-Nualgi may make the problem worse by causing growth of more Diatoms.

-When Nualgi is used better species of Diatoms will grow and these will out compete the present species growing in your tank. The new species will be better food for fish, so they will be consumed. In tanks in which Nualgi is being used, there are no complaints of excess diatoms, since the diatoms are being consumed. As you are having a problem with accumulation of diatoms, so it is possible that the diatoms growing in your tank are not being consumed, as they may be inferior species.

– It is possible that the brown algae growing in your tank is not diatoms at all but some other algae that is also brown. If so, Nualgi will help

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

The relationship between copper in the organism and in its environment is complex as it depends on the particular organism and on the bioavailability of copper. Copper is an essential mineral for humans, plants and organisms. For humans, it is required by the body for bone and connective tissue production, and for coding specific enzymes that range in function from eliminating free radicals to producing melanin. A deficiency in copper can lead to osteoporosis, joint pain, lowered immunity etc.

According to University of Florida research, recommended Cu2+ concentrations of 0.15–0.20 mg/L, free copper is toxic to a number of organisms that are pathogens of fish. Some species of fish are highly sensitive to copper and will die even at concentrations below therapeutic levels (i.e., less than 0.15 mg/L free copper). Copper concentration in Nualgi is at 0.0005mg per L which is further diluted in the tank by a factor of 100 dosing 1ml in 30 gallons.

Furthermore, Nualgi is a nano scale formulation. As indicated elsewhere in this FAQ, nano particles have different properties to coarse particles. This small amount of copper is required for the diatom bloom and is considered safe for aquatic life. Two of our trialists mistakenly dosed the entire 12 week dose at once. No impact was seen on the aquatic life in their tank.

Because of its nanosize, Nualgi is able to pervade very small spaces in the subsurface and remain suspended in water. This allows particles to travel farther and dissipate quicker than coarse particles thereby increasing the bioavailability of the nutrients for easy absorption. The iron and other micronutrients in nano form cannot precipitate out or gel in the water as it happens when they are added directly as salts

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

With Nualgi, there will not be an uncontrolled diatom bloom. Diatom growth will depend on nutrients, silica and Nualgi. The diatoms will decline once these are exhausted in the water.

Please log in to rate this.
1 person found this helpful.

0 Comments - Leave a Comment

Nualgi is not an algaecide therefore it will not kill off macro/chaeto or for that matter any fish. Nualgi and macro/chaeto would however compete for nutrients (P and N) on one hand, while on the other by virtue of its composition, Nualgi would deliver micro nutrients like P, Zn, Mn ,Mg, Ca etc to the water which would facilitate growth of macro/chaeto. It therefore wont kill macro or chaeto, but bring the growth of macro/chaeto to balance.

Please log in to rate this.
3 people found this helpful.

0 Comments - Leave a Comment

Post Nualgi Dosing (6)

Every system is different, but some of the possible reasons Nualgi would not work in a tank are:

    1. Over feeding. We recommend feeding once every other day.
    2. Poor quality lights and/or incorrect lighting periods. Ask experts in our forum for specific recommendations.
    3. Excess nutrients in the water from using nutrient products alongside Nualgi.
    4. Water temperature is too high for diatoms to grow.
    5. Water contains Phenols and Phenolic compounds inhibiting growth of diatoms.

Contact us to help you troubleshoot.

Please log in to rate this.
1 person found this helpful.

0 Comments - Leave a Comment

After prolonged use of additives, excessive feeding and poor husbandry, it is quite likely that the excess nutrients are embedded in the aquarium bed, particularly in large aquariums. Nualgi treats excess nutrients both at the planktonic and benthic level. Therefore in the early stages of Nualgi dosing, it will purge these locked up nutrients on aquarium bed and these become nutrients for algae and cyano. These nutrients would cause an algae or cyano bloom eventually, so Nualgi is preventing a larger bloom from happening in the future.

We recommend that you perform frequent and larger than normal water changes during the first few weeks of dosing to help remove any excess nutrients. Physically remove as much buildup as possible before doing a water change to help remove larger patches of algae or cyano. Reduce lighting and feeding and make sure filter media, skimmer etc are performing well. If possible increase the flow in the affected areas and switch to daily dosing of Nualgi.

As Nualgi dosing progresses, the diatoms produced will starve all algae including cyano and the tank will gradually clear up. There are reports of cyano being gone within 3 days of first Nualgi dose. That usually means that there wasn’t a significant excessive nutrient issue in the tank in the first place. Because every tank is different, time taken by Nualgi to starve all algae can vary.

Dahlyvh on YouTube got rid of 100% of his black beard algae, but it took all of 8 weeks!

Aquarists can help Nualgi’s effectiveness by taking the following actions:

  • Restricting  duration that the lights are on to no more than 8 hours per day.
  • Reduce feed to fish to once in 2 days. Quantity should be as much as can be consumed by fish in 3 minutes.
  • Use GFO or other phosphate suppressor for some time till tank clears out
  • Follow Nualgi dosing instructions

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Yes, daily dosing is more effective than weekly dosing. We do not recommend daily dosing on our dosing instructions because most aquarists are not at home to dose their tank when the lights come on. A daily dose is one-seventh of a weekly dose. For example if your reef tank is 210 gallons then the weekly recommended dose is 7 ml and the daily dose would be 1 ml.

Full dosing instructions

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

We strongly recommend against overdosing Nualgi Aquarium. To dose in a nano tank, we recommend that you use a dropper. 20 drops equal 1 ml. We recommend that you stir the Nualgi dose in a cup full of tank water and dose it over a 2-3 hour period to avoid any negative consequences of overdosing.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

It does not. Just thaw at room temp and use as directed.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

No, Nualgi is stable at room temperature. Keep away from direct light.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Product Pricing (2)

50ml and 100ml

Buy Now

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

We offer a 15% discount on purchase of 12 or more bottles. Here’s the link to ordering this

https://nualgiaquarium.com/nualgi-wholesale-pricing-page/

For aquarium maintenance companies, we offer a 500ml bottle that is sold at a 33% discount per ml as compared to our retail 100ml bottle.

 

For registered LFS with a physical location, we offer a 30% discount on purchase of 24 bottles or more. Please use this link to register your LFS

https://nualgiaquarium.com/carry-nualgi-in-your-lfs/

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Diatoms (3)

The initial count of diatoms depends on factors like type of water body like artificial or natural , water present like RO treated or just filtered water in majority of aquariums were RO is used the diatom concentration and diversity is less when compared to ponds.

After dosing Nualgi as it doesn’t contain any live diatoms it can only trigger growth of diatoms present in the water so if there is more diatom diversity it can lead to more diatom count. In our research with lake water we are able to increase the number of diatom species from 8 before dosing to 30 after dosing over a period of 2 weeks and diatom concentration increased from 0.1×10^4 to 4.1×10^4 cells per ml per week.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Diatoms can be counted and species identification can be done by 10x100X magnification under microscope using identification guides and literature.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment

Yes the species of diatoms differ from salt to fresh water. Mainly in fresh water pennate forms like Nitzschia sp. , Gomphonema sp. and Navicula sp. dominate along with some centric forms like cyclotella sp. In sea water centric diatoms like skeletonema sp., Thalassiosira sp., coscinodiscus sp., chetoceros sp. will dominate along with pennates like Nitzschia sp., Achnanthes sp., Navicula sp.. In sea water we find more planktonic forms were as in fresh water there are more benthic forms.

Please log in to rate this.
0 people found this helpful.

0 Comments - Leave a Comment