What is more a waste is the other thread you ask what tang goes with what..I'll tell you this much,killing off a tank with ICH with adding other tangs to it is not responsible reefing at all..IMO
Aaron,
Just friendly advice here. Not meaning to come across the wrong way or like a "meany" at all. LOL
BUT I agree with Todds Post above. If your thinking of adding another fish (Tang or anything else) to the same tank that has Ich... it's a huge no brainer NO NO ! Unless your talking about a different tank that's Ich free, your going to increase and worsen your problems by adding a new fish to an infected tank.
Don't add the fish at all. Your playing with fire (and possibly money if you care). Just well meant advice that most anyone that knows would give...
Quarantine any fish you plan on buying in the future too. It will (if not eliminate) at least strongly decrease any possible transfer of Ich to your display tank(s) in the future.
Tangs(from the other thread) I agree with what everyone said. I realize people in general get excited and want more fish in their tank. But consider responsibly handling your problem in the tank first. Then consider some other fish.. and perhaps different species than another Tang. A couple that were suggested were fair suggestions. But as said, it still would be risky. 75's are nice. But not very big for Tangs that can get aggressive with each other and develop territorial attitudes that increase with growth/age.
I actually had 3 together in a 75. But not for a long time. The particular species were compatible enough. With enough room. I moved them to a 125 and then a 150 after that. The grew up together as I added them all at the same time and fairly the same size in that particular case. But I was pre paired for moves and had them growing together for a few years with No tank problems. Slow down. Just suggestion: Master one tank(75) get it Ich free if thats the tank.. and then select a nice group of fish to stock it with slowly with careful pre research into them before buying. Study some compatibilities- growth rates(for appropriate tank sizes), behavior, and tankmates compatibilities.
Save your dream fish match ups for a larger future tank. Once you've conquered and understand some basics. In the end you'll be happier. As opposed to rushing it and creating disasters that don't work out. I like watching money I spend become an investment at least in pleasure that lasts. As opposed to growing wings and flying into the dumpster.
Just meant as friendly advice.