I had em since it was 7" it is now 9" in 4 months and doesn't seem to be growing anymore. He does have a deformity. He's missing half of his lower jaw including 2 whiskers on the side where his jaw is missing. I bought it like that from my lfs. He's now in 40 breeder grow out by himself because all my fish out grew him. What's making him not grow? Is it because his deformity doesn't allow him to eat as well as others?