Ok so here is my situation... My Hippo Tang looks like it has come down with ich. very very very fine white specs, almost unnoticeable unless the light hits the fish perfectly, and it's rubbing up against the rocks. Also seems as though it's breathing a bit rapidly, but he eats PLENTY. I also have two ocellaris clowns and a royal gramma.... they all seem fine. No physical/behavior changes.
I have an empty 10g tank that I could use for a HT but I do not have it cycling yet. What I do have is a HOB filter on my display tank. I don't necessarily need the HOB on my display as I have a skimmer running along with LR and water changes once every 2 weeks or so. So could I use the HOB from my DT to cycle the HT and just use water from my DT also?
I think my biggest question is do I place all of the fish in the HT just in case? It's only a 10g and can it handle 4 fish at once? Or should I just place the Tang in the HT?
The HOB filter has BioMax, Foam, and I wouldn't run the carbon on it if I'm going to medicate with copper. So, do I leave the BioMax and Foam in there and add something else to the filter?