Hello

I was wondering if anyone would know what is wrong with my poor Cichlid. Leo has a sore in his mouth, bottom jaw, right where the central incisors would be on a person. It looked like a pimple at first, then it grew larger and redder, now it is getting even bigger (and redder). I feel bad for him! Could he have swam into the glass so hard to break his jaw!? He is really big - I have mentioned him before - He is full size and he is in a 29G tank. I know his tank is too small - my mistake, not enough research before I got him years ago...sorry Leo.

Thanks for any help anyone can offer.