White mollies colour change?

Question

I have a few white mollies and i've noticed with one of them that he's developed a bit of black on his top fin and a little on his body, and his gill area and area near his mouth is turning yellow. Is this a problem?

Answer 1

How old is your molly? Mollies, as they get older and larger, naturally develop more color (including black and yellow/gold). I wouldn't worry about it. As long as he's acting like normal and eating he'l perfectly alright.