Please help me with this. I have about a 90 litre tank and i keep managing to lose fish! It's not a super big deal because the fish are probably already dead by the time i come back. They die from old age and not from any disease. Sometimes i just take a look at my tank and i find a fish missing. I have lost quite a few now and i have removed all my decorations and sand and still have not found them! Is it possible for them to get "eaten" by the filter or can another fish eat it? I have tetra fish. (blue and red coloured) angel fish, and guppy. None of them ever seem to try and eat each other. Please help. All my fish are a good size so i can see them clearly. I don't know whats happening!
