Originally Posted by gus6464
So to resurrect this back from a slight hiatus, how do you know when your Purigen needs to be recharged? Is it when it turns all brown?
I generally give it a 2 months period. Like most of our planted tanks, the bio load is huge. You can do 3 months. After that, I don't even bother to regenerate anymore. I just use a new portion. A 250ml bottle can last me over 6 months with my 40g high tech tank. Why would I want to go through the hassles and the "dangers" to regenerate them...