doesnt look like ick. looks more like an injury. probely from fighting or could also be from netting them. my uaru sometimes look like that after i net them. It seems they have a delicate slime coating. The pic is a bit blurry but that would be my guess. Looks like a few scratches and some scales missing(is that what it is?), so i would say its from a small fight. Uaru usually heal quik so with good water quality, it should be gone within a few days. is there any white cotton looking stuff growing on it now?