ok should have had more detail maybe, I said the white body of the shrimp looks darker, not the white stripe down his back, he seems to be acting ok been in there 2 weeks about, do they look like this when they are about to molt? I just have the standard test kits ph, trite,trate,& ammo-- do I need another juat for him, I dont have tons of corals sucking ou the calcium, but maybe I should still add, after I get a test of course. Any help guys?