You ask for our opinions, yet when we give them to you, you become defensive and treat us poorly because you do not like what you hear. I'm sorry that you feel you must resort to this, but the lives of your fish are of the utmost importance to us. True, they are not under our care, but this doesn't mean they don't deserve "the best environment" (besides that of the ocean, of course). As someone already said, your tangs may survive as they are, but that doesn't mean they're happy. There were many Jews who survived the concentration camps, but I can assure you that every one of them would have preferred an environment much different from the one they "survived" in.
Remember, the fish must always come first in this hobby. The lives of these creatures are in your hands. Please make decisions based on their wants and needs, not your own.
:happyfish
-lefty