I think some people may have a common misconception about this product and think it will magically make their water crystal clear. It says clearly in the description that all it does is add some bulk to your water so the filtration has an easier job sucking up the particles clouding your tank up, that's all. I use this product very sparingly and it does exactly what I expect it to do. I have used this in my peacock aquarium, mbuna aquarium and community aquariums. I have never had any issues with my fish reacting to it in a negative way. I would recommend this product to someone who knows exactly what it does and what it's used for and won't expect miracles to happen. -Anthony B
I'm a reg customer at co-op, HOWEVER.. This stuff has a strong chemical smell. Instantly my cichlids knew I had put something in the water and it terrified them. They hid immediately and I'm sure I'll have to build up some trust again. There is a zero chance that this is healthy for them especially tiny fish. Even if they don't die, it's a shock to them and it simply does no-thing to visibly clear water in my experience. Instructions are a cap per 10g. Makes me not want anything Fritz period. Their enzyme formula has hard settlement in the bottom that breaks up into crumbs when shaken hard enough, if not shaken it stays in the bottle. Seems like a money decision to carry it instead of a results decision.