I am not sure about the knife & bichirs but if you put a con, JD or O in there they will clean them up. I actually want snails in my con tank & cant keep them. same with the O & JD they just gobble them up. My Betta lets them live.
I agree they may have came with the fish, sneaky buggers..
I agree they may have came with the fish, sneaky buggers..
