I have had an aquarium for a few months now. It took me a little before I bought a heater, filter, and air pump. I had the same two tetras and the same albino dwarf frog for most of the time I owned the aquarium. I thought they would be happier with the new heater and filter. Well one of my tetras disappeared. I decided to purchase some new fish. I bought 3 blue danios, and 2 new neon tetras. Well the first day one of the tetras went missing which I wasn't even charged for a petsmart because I noticed he was missing a fin and obviously not going to live long. Yesterday I went to work and when I got home I was missing another tetra and the other was staying in one place towards the bottom of the tank, and now today I am missing a blue danio. My fish seem to be disappearing and I don't think the frog is big enough to eat them. If anyone knows what may be happening to my fish please help me. They have not jumped out of the tank and I can't see their bodies in the tank.
One more question. Should I affix the air stone at the bottom of the tank? It almost seems like the current is too strong.
One more question. Should I affix the air stone at the bottom of the tank? It almost seems like the current is too strong.