Question on cheato. My stats first. 20 gallon nano, 25 lbs LR, 25 lbs Live Sand. I DO NOT have a sump yet. Most of what I read is about putting it in your sump. I went to my LFS and asked if they had macroalgae. She gave me a big ball for free and said just stick it in my tank since I don't have a sump. My question is, how long do I keep it in my tank? I just put in behind my rocks hidden out of the way. What benefit am I getting from it?
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