LOL! why?.... is the 90 not big enough for the Powder Blue?
Anyway, I Guess it would shock you to know that I have 20 Blue/Green Chromis, a Powder Blue, Cleaner Warsse, Copperband Butterfly, Maroon Clown, Lawnmower Blenny, Green Mandarin, Percula Clown, Coral Banded, 5 Mythrix crabs, 75 Blue leggs, 7 scarlet, 10 astrea, 15 nassarius, 1 horshe shoe, 1 green brittle, 1 blue linkia, 3 camel back, 1 arrow, 3 feather dusters, 2 hatian pink tipped, a pencil urchin and another small brittle star in my 90 gal. They live fine and are SOOOOOOOOO happy! I worry about the posts that say..."You need to really cut back on the animals you have in your tank, I feel as though there might be overcrowding there and stress might overcome the poor creatures and then they might die. "
Hello.......................If I thought at any time my animals in my completely viable ecosystem of a tank were having anxiety, I wopuld take them out (period). This is just NOT the case. SO for those of you that think otherwise, I am living proof that if you take good care of your tank, ALL your inhabitants will live a long HEALTHY life! Nothing against you, just my PERSONAL experiences with my saltwater hobby!