My wife wants to get me a blue spotted grouper for christmas. Im wondering if it would be a good idea the tank its going in is a 150gal fowlr. Its tank mates are going to be orange shoulder tang yellow tang and a lamarck angel. Future tank mates will prolly be a snowflake eel and lionfish not sure yet. The fish is 6inches atm Would this be a good addition or a nightmare. Basically want to know if it will get big faster than the tangs and angel and eat them or if everything will be fine for awhile. Future tank build is 300g which is in the process.