06-18-2012, 12:21 PM
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Originally Posted by cjmaddy
Hi - the tank has been running since Tuesday. I got the fish on Friday - I have two mollys and one male fighting fish. The white molly has now just died
though the fighting fish and the black molly are both fine.
1. You need to cycle your tank.
2. Fighting fish and Mollies are not compatible. It's one or the other. Since the tank is only 4 gallons, I strongly recommend you return the Molly to the pet store and just keep a single betta (fighter in there). Although, even 4 gallons is a bit small for the one fish.