Again, buying livestock without a clue as to what it is, it's needs are etc You really need to pay attention to what people here are telling you. You need to research your purchases before you buy them, that way you won't be buying inappropriate animals for your set up. This looks definitely like a sweetlips and is totally unsuitable for your setup which is still no doubt full of ich as you haven't used a treatment that will rid your tank such as leaving it fallow of fish for 6 weeks and treating animals in a qt tank with either copper or hypo. Please take heed of what we are telling you as it is difficult to reply to your posts when you clearly have no intention of following through with a treatment plan to correct your current issues. Apparently it really doesn't matter fish you have bought as it is surely not going to survive the current set up