So I've had a true percula clown fish for about 2 months now (first fish in 30g 4 month old tank). Ever since I've had him he's been a great swimmer, eats very healthy, and begs for food when i come around. (all good signs of a healthy fish i thought) Over 2 months i don't think I've noticed any growth at all, and he seems very very skinny to me. No noticeable spots or signs of sickness, he just seems much skinnier than many other clowns I've seen. Also, I test my water at lfs about twice a month, and things are usually spot on. any ideas?\n\n...also, it seems like there are tiny slits or tears in his back tail fin. almost like he's been bullied by other fish, but he's the only one in my tank, and he developed them since I've had him.