Thanks for all the info. They are still alive and swimming this morning, and Ive tested the ammonia level again and its still dangerously high, 2.0. As far as them being around 3 inches, thats just a guess on my part. I'm horrible with measurements unless I actually measure them. I haven't tried to feed them yet, but they do seem active. My boyfriend is in there doing a water change now, I think. I don't have any prime to add to it, so we are just adding water. Does it make a difference if you are using city water verses well water? I didn't think about that until now. We have well water that is ran through a water softener.
I didn't move them to one of the other tanks because the other tanks seem a bit full. One has 6 oscars, an ahli, jack dempsey, 2 plecos, and a dragon fish while the other has 2 oscars, 3 ahlis, 3 parrot fish, a red tail shark, a green terror, an eel looking thing, a rope fish, and 2 dragon fish. I know that sounds like alot but the 2nd tank has smaller fish.
Again, thanks for all the info.
As far as the water quality in the other tanks, when we first got the 75 gallon, we did have an issue with ammonia from overfeeding, but with water changes, it cleared up and no issues since. The water stays clear and I havent seen any sick or infected fish. The 2nd 75 gallon did stay a little cloudy from overfeeding but we cleared that up quick too, now it is clear and nothing has been sick. I didn't treat the water in either tank when they were set up and added fish within 2 days. Maybe I was just lucky with them.