i was told by my LFS after switching to sand that these guys are pretty much necessary, or at least they highly recommended i got some, as "sand sifters" what do you guys think? do you have them in your sand bottom tanks? my two concerns are will they overrun my tank and will my fish try to eat them? and if they do is it ok? thanks guys
stock: pbass and ornate bichir
stock: pbass and ornate bichir