"couple of days??????????
dude, its been four days for me and i still have no water in the tank. what a mess, its taking me too long to find a tank, check the tank for leaks, find asnwers to questions. i still need to figure out what i can afford to buy or get for biological filtration. only thing i got to spare is a canister filter. i bought the copper med kit and test kit. tonite i will have no time for any advancement to set the qt tank. it sucks knowing that im racing againts time while my blue tang is getting a little more of ich every day. i beleive my large yellow tang may have it. "
I was just trying to make the point that keeping the display fallow for 8 weeks is really no imposition when you consider the time it takes to treat the fish. I said a couple of days, thinking you already had some sort of QT set up on hand. (Honestly, I was spacing out when I posted and didn't realize you still had fish in the display)
I would suggest that you move as quickly as you can to set up a Qt, because once you do, you'll still have to catch the fish.
I can't offer any advice re: feeding the blennies, I just don't know.
best of luck