am i full?

[98lude]

My tank is a 37 gallon tall cube with a 10 gallon above tank refugium. i have my eheim canister filter taking water from my main tank and moving it up to my refugium where it is gravity fed back to the main tank. i have a UV light on the return from the canister filter. i have a coralife super skimmer 65 on my above tank refugium. above my main tank i have a floresent strip light and all the way on top of my system i have a metal halide system shining through into the main tank.
in my refigium i have cheato and i have about 10 pounds of live rock rubble filling the return section.
i have about 40 pounds of live rock in my main tank and 20 pounds of sand.
i have a small powerhead in my tank curculating water.
For fish:
2 clowns (cant remember if they are false or true.)
bi color blenny
royal gramma
Blue Devil Damsel (in refugium)
Pistol Shrimp and a Shrimp Goby
purple lobster
blood shrimp
cleaner shrimp
serpent star
decorator crab
i have a few turbo snails and nassarius snails but not many because when i add more they did off since i dont have much film algea in my tank
i was wondering if anyone had any suggestions as to anything i can add to my tank...
perhaps a 6-line wrasse?
bangaii cardinal?
firefish?

 

[anthropo]

if you do add anything i would add the purple firefish or the bangaii cardinal. although i like the 6line they don't get along with shrimp. although there are exceptions. i use to have a fuzzy dwarf lion in with a 6line and i fed the fuzzy live feeder shrimp and the 6line would attack every single one and eat them. i wouldn't add anymore fish after you add the next fish. also i'd either get rid of the uv sterilizer or run it every other week especially if you have corals.