Sorry for your lose =( I a lways hated CLs for this reason. treating them was always a loseing battle it seemed. Rid Ick .. if it's the same med I'm thinking ( I honestly haven't needed to treat Ick in years) says specifically on the container not to use to treat scaleless fish. and the medication itself was very bad in particular to loachs? I hope your surviveing loachs are ok, and heal well.