Originally Posted by Crystalview
I oops'd I do change the water 50% once a week. I rinse out the filter once a month. I remember reading that puregen increases a nutrient in the tank water What does it change. I would really like to to use another short term chemical to get rid of the slight green water. Can I add another fert instead.
I've been using Purigen for years. It's an inert resin that simply catches micro particulates. To my knowledge, I've never heard of Purigen affecting nutrients in the water column.
The light may be a factor, as well as a lack of CO2. What are you water parameters (nitrate, nitrite, pH, ammonia, etc)?
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