water temp shouldn't have done it. I have mine between 78-80. Did you check ammonia/nitrite levels? How did you acclimate him to the tank? Do you have any powerful current (powerheads etc.?) what type of filtration?
I also agree, don't buy them that small. Go for at least 8" and have the store feed him while you're standing there. Make sure it doesn't have any damaged scales, and the fins look clean and not torn up. Unless you're really good at raising them, make sure you start with a healthy specimine.
I also agree, don't buy them that small. Go for at least 8" and have the store feed him while you're standing there. Make sure it doesn't have any damaged scales, and the fins look clean and not torn up. Unless you're really good at raising them, make sure you start with a healthy specimine.