I have a ocellarius clown, fire fish, yellow tang, hippo tang, lawn mower Blenny and a watch men goby.. With 2 peppermint shrimp, 2 cleaner shrimp and a coral banded.. I also have a small brittle star with bout 6-7 huge turbos and about 15 hermit crabs.. I have a 125g reef tank.. Just a few pieces of coral.. Bubble coral, coral colt, Xenia, mushroom and green star polyp.. I have the ML c360 with 3 hang on biowheels (400,350.280) with a hang on reef octopus protein skimmer.. Sand bed about 2-3 inch and bout 150 lbs of live rock.. Can I add any big fish to my collection if not what smaller fish can I? My water quality stays good with scheduled water changes.. Any advice would be great.. An if you can see my tank in the photo where are some places certain coral will better.. Oh yea plus I have a one inch engineer goby that I haven't seen since I put him in the tank