Would it be safe to put a Koi fish inside my sump? Its a long 50 gallon Rubbermaid plastic tub and it has a lot of space. The Koi is nipping on my other fish in my long 50g. So i was thinking of placing it in there.
Would it be safe? I was told that goldfish let out a certain substance that can kill tropical fish. I forgot the name of it.
Would it be safe? I was told that goldfish let out a certain substance that can kill tropical fish. I forgot the name of it.