2 weeks ago i bought a foot long African Marbled L.F.,as i stated earlier this fish hasnt eaten in 2 weeks(since i have owned him).I do frequent water changes(at least 25 per cent)every 2-3 days.I do have some rocks in my tank(wich i am willing to get rid of).My Lf was a little bit beaten up when i got him,but he does swim around a bit and come up for air.I tried to hand feed him earlier today by placing a piece of raw shrimp in his mouth when he came up for air,but he just spit it out.He has developed some"Pimples" on his body,what could these be??Is this why he doesnt eat??They are not fuzzy,just white bumps.Please any help is really appreciated!!Thanks!!

