I have a 220 gal ,Theres around 180 pound live rock, Substraight is Live caribian sand and as far as fish; Naso tang ,fox face lo both 9 inches,two pecula clowns,rainbow wrasse, blue damsel, pink damsel,smallbambo shark 9 inches,two sea cucumbers.one brit star,one sand sifting star,a few turbo snails and 40 or so nass snails.
The live rock is mainly in the back to the corners and has alot of cave work through it. some zooanthids and mushrooms . Thats about it. The tank has been running around two years,very established