That's a real odd tank size and probably one of the worst dimesions for a saltwater tank I've ever heard of. You got like no length for swimming lanes or LR, no width for 65lbs of LR and your tanks really deep meaning you Reef Lighting would have to be as intense as one sold for a 180 gal inorder to grow corals. Sorry - not wanting' to be negative on ya it's just the way it really is.
Although @ 65gal you could do 1 small Tang. "Dory" Hippo Blue Tang is out of the question but perhaps a really pissed off Mimic or Bristlenose. And I do mean they'd be pissed off with no room to swim but up and down. Your more than likely lookin' at reef fish 5-6" or smaller - 1 Dwarf Angel or a Tomato Clown might be the largest.
Saltwater is nothing like Fresh- large volume w/c's are a big NO NO making Nitrate control different. Saltwater is loaded with all kinds of elemental stuff large swings in this stuff spells disaster for marine life. Think like 10-20% of premixed preheated water a week. Daily Tops are mandatory with freshwater only. These daily's help keep all the elemental stuff stable. Your primary Nitrate control will be biological - LR and a DSB. Cheatomorpha in a fuge, Skimmers, Reef Carbon-P, Purigen and Chem-pure elite will all help control Nitrates. It's real easy in SW for Nitrates to get 40ppm or more very quickly - when this occurs fish disease from hell can and will occur.
UV sterelizers aren't really recommended for SW Reefs because it destroys the corals planktonic food source in the water column. With GFO reactors you want a 100gph flow no more no less - more flow GFO won't work, less flow the reactor will lose it's prime. With your 2ft of depth your probably lookin' @ 4 in tank powerheads with a total flow rated a minimum of 10x the size of the tank volume- 650gph.
Once again not tryin' to be discouraging just lettin' you know in advance what your dealin' with for success. Best of Luck - keep us posted.