You can also do a fish tank with limited corals...ie many corals taste bad and are ok with quite a few types of angels. Flame, coral beauty, beallus, regal, goldflake are all ones that will often (not always) but often be ok with euphilia, leathers, gsp, and quite a few others. Two things 2 remember...a hungry fish will taste test everything and much of the angel coral bad rap comes from the large angels like queen, scibbed, and french etc. I will admit with the small to medium angels sometimes its a coin toss. But even when you loose the coin toss most angels don't eat all types of coral.