Hey guys, I'm dealing with an ich issue with my powder blue tang. I'm thinking about taking all my fish out of the display and put them in a bare bottom temporary holding tank and let my tank run empty for a couple weeks to eradicate all the ich in my display. My question is how long should I do this for? And I'm going to be ordering a Rodi unit this friday, is it OK to use tap for the fish only set up while I wait for the unit to come in? Also should I medicate all my fish with the PBT as a prophylactic or is that a bad idea?