Daily dosing is better than dosing weekly. We strongly advise against over dosing. About 1% of the tanks have not reacted well to Nualgi and have reported more algae. So we would recommend you start with 1/4th of recommended dose and if you can, dose daily which further reduces any risk of a negative reaction. Stop dosing Nualgi if you see an increase in algae in your tank and contact us.
So to be clear, as an example, if you have a 120 gal tank then the recommended dose is 4 ml per week. 1/4th of that would be 1 ml per week. And daily dose will be 1/7th of 1 ml which is about 3 drops. That too you should dilute in your tank water and add it to your sump. We are trying to be a “little over the top cautious” to eliminate downside risk.