I have a 55 gallon tank, soft water, ph-6.8, I use quickdip test strips, ammonia is in check, nitrates and nitrites are in check, its freshwater, aquarium has been set up for about 2 months, i Have a 6 inch senegal bichir, 6 inch needlenose gar, 2 red claw crabs,giant danio. temp is 80, no live plants, emp 280 filter, no sunlight, last water change was 3 days ago, i did a 60%, fish get fed shrimp pellets/ occasional rosy minnows. I have all sorts of infection going on in my tank, most of my fish have died, I treated the tank with jungle anti fungus tablets, the senegal bichir seems to be surviving along with the needle nose gar and giant danio. But the bichir had a large white spot on it's tail that eventually turned into a red sore, the giant danio's fins are brownish and a little tattered, and the needle nose's fins are somewhat tattered, im supposed to re-dose tommorow if the infections don't clear and if it's not a fungus problem I don't want to do that. Pics:
http://i193.photobucket.com/albums/z240/Joehays/bichir1.png
http://i193.photobucket.com/albums/z240/Joehays/bichir2.png
http://i193.photobucket.com/albums/z240/Joehays/Danio1.png
http://i193.photobucket.com/albums/z240/Joehays/needle1.png

http://i193.photobucket.com/albums/z240/Joehays/bichir1.png
http://i193.photobucket.com/albums/z240/Joehays/bichir2.png
http://i193.photobucket.com/albums/z240/Joehays/Danio1.png
http://i193.photobucket.com/albums/z240/Joehays/needle1.png