thats a badly neglected nicaraguensis! if you have a quarantine tank feed him up abit in there a while as he might get picked on by bigger cichlids for his obviously weak image
Wanted to post an update. The little guy is putting on some weight, I think he is going to be fine. He is a lot more aggressive than I expected after doing some research (after you all told me what he was). Today I caught him in a lip lock with a cutteri and he has run the neet out of his home. Right now he is actually the most aggressive fish in the tank. Hard to believe considering his tank mates.
He might be about an inch longer if that, he has mainly put on mass. He looks much healthier now and he eats like a pig. He is probably around 5" - 6" tl.
By the way, I have no idea if it is a male or female.