Who eats ricordea and zoo's

[howdy20012002]

this might be a bit off topic but what it the environment like in your tank with 7 tangs and 21 fish in total in a 90 gallon?
I am not trying to be a smart @ss either....but basically you are doing what lots of people say you shouldn't do and I just want to see what the behaviour of the fish is like? are they aggressive to each other? is there one dominant fish that bullies everyone else? do the fish appear to be stressed out?
I have lots of customers who ask how many they can put in their tank and what it the minimum tank size, so yea...just looking for some input.
thanks
Neal