Ive decided to start a thread on my 10 gallon more or less just to track my progress wish i would have done that on my 180 anyways its been setup for about 3 mo. Just got 2 turbos and a scooter blenny today
Your going to burn up anything you put in that 10g with a 400w metal halide on it..... Even if it doesn't cause bad temperature swings, it will cause some corals to sunburn, even light loving ones like acropora, with such a shallow tank.
looks like you might also need to get your nitrates and phosphates under control first, before you start adding corals.