Thats definitely ick :yes: If you are worried about overstocking you can move some into your hospital tank and use kick ick on the others cuz it wont hurt your inverts. Thats what I did and it worked great.
HTH
i do have a ready to go QT. But hes a fast burger with lots of rock. Hes eating healthy so giving him vitamins. decided trying to catch him would cause more stress.