i have a blue throat and a niger in my 125 reef tank and they are about 4 to 5 inchs. i have almost every kind of coral lps sps softies clams zoos shrooms. alot of inverts clams, snails, crabs, urchins, stars. the only invert i dont have is shrimp. they have been in the tank for about 6 to 7 months. they are doin great they are probably the most docile fish in the whole tank. my tomato clown is more aggressive then the triggers.