I just recently set up a 5 gallon fresh water tank and only intend to have 2, maybe 3, small fish. I started with two baby angel fish. One died within a day. The second one died the next day. The crazy thing is that I cannot find the second fish. I have checked the filters, moved gravel and inspected every crevice I can think of. Since there was no other fish in the tank to eat it, does anyone have an idea as to what could have happened to it? I also inspected the area around the tank on the sheer chance that it flipped out of the tank. Any input will be appreciated.