I'm looking to finish stocking my new tank, preferably qt'd but I know that's going to be a little harder to find. Also as far as the 3 tangs go, do I need to try to add them all on the same day to avoid aggression? I'm looking for a Midas blenny(seems like I can only find canary Blennies), purple tang, sailfin tang, kole yellow eye tang, and possibly a powder blue tang. Please help! Lol