Dwarf angel fish

[fishoholic]

I was just wondering peoples experiences/opinions of

1. Would a dwarf angel be ok in a 30g cube tank that currently holds 2 clowns, 1 mandarin goby, and 1 green clown goby, or would that be too many fish?

2. I know angels are 50/50 with corals but the only coral we have in that tank are zoas, have zoas become a snack for anyones dwarf angel?

Just wondering thanks, Laurie