platyranch
New Member
Help! I have had a very small tank (my first one) for about a year. It's only a 12 gallon, with a charcoal filter, heater and a bio wheel. (I am anxiously waiting to have room for a larger tank.) Everything was going along great. I have a few platies, one guppy and did have some little freshwater crabs. First one of the crabs died and I replaced her, only to lose the other two within a few days. Then one fish develped a whitish patch on it's head and died. Then 2 of the smaller platies (does anyone know how to make them stop breeding?) developed something stange about their mouths. The bottom is protruding downward and the top almost looks as if it's missing. I don't think they are able to eat, and one finaly died. I think my tank is probably a bit crowded, but most of my fish are very small (babies) and most of them seem fine. I treated the tank with Jungle Fungus Clear, then someone recomended a copper cure, which really didn"t do much and I was afraid it was very toxic. I have been doing 25% water changes once a week with quality water and everything is testing ok for ammonia, nitites and nitrates. any ideas? Would Melafix help? I would greatly appreciate any ideas!