UPDATE!!!
I GOT A QT TANK. Used 50% water and 50% old tank water. Nano heater and a air stone going. The glow tetra does not seem to be happy. He's swimming diagonally and going up and down the one side of the tank. It's a 5gal plastic tub. IS IT OKAY TO USE AQUARIUM SALT AND MELAFIX TOGETHER??
Im trying to get something to use as a hospital tank. Then I'm going to get some fungal stuff from api, it's only 8$ here. So I'll get that, I'll grab a heater and and air stone and some salt. The white fish is about to die. I'm going to take the two mostly affected fish and treat them...
I'm hoping it's not any disease. These fish have been in this tank for over 5 weeks. I think nitrate poisoning, can anyone help with this? I have low funds and the only things I need are a small heater and something to hold these two fish in. Does anyone have ideas or best places to get cheap...