jnish83

I recently aquired a larger (12+ in) red devil. When we brought him home, his bump on his head was mid-sized. Our 110g tank is very much larger than his previous home. Since we have built him a cave and he has become more comfortable, his hump has probably doubled in size. I am guessing this is because he is more comfortable in his home and its a good thing...please let me know if you agree...

FishKing

This hump on his head signifies his age. Most male cichlids develop a bump on their heads as they come of age. The older the larger the bump.

jnish83

i understand that the bump gets larger as the fish ages but i am talking about the bump growing double in size in about 2 weeks!!! that is why i posed the question, does anyone else know why the bump would double in size in such a short amount of time?