I have a 30g hex tank with a pair of Bangai's, a pair of black clowns, a few anenome's and a cleaner shrimp. Now that the male is holding, I was going to take out the pair of black clowns, the female bangai and the cleaner shrimp and put them in my 180g display tank until the male spits out the young. When I do this I was going to take a black spiney urchin out of my display tank and put it in with the male bangai. Does this sound like the right thing to do leaving the male alone with just the black urchin until he spits out the babies??