I have had this tank for a few years now and I have just let the fish die of naturally as I want to stock it differently this time and I want you guys to help me in choosing some cool fish for the tank. The PH is 4.6 and I keep the temperature at 26 Celsius but I can change it. I have kept fish for 14 years and I want your guys help to chose some cool fish to go in there. Thanks for the help