Hi I also am a marine newbie I started out with a AR620 April this year
but then decided to have a tank made 700x520x500 I know rather small but all I could fit in has a sump underneath using a red sea protein skimmer (thanks muchly steve) still to get T5 lights at moment using 3x 2ft lights 1 marine blue 1 marine white and 1 power glow. Have xenia, leathers, frogspawn, colt coral 1 blue tang, 1 clown, 3 chromis, 1 flasher wrasse. Absolutely loving having the marine tank so different from my cichlids.
Will have to get a bigger house so I can have a bigger tank. :lol: