Just wanted to add my two cents.

I have 190 gallon about 25" deep and have at last count over 23 sps and your typical smattering of zoas, lps and a few softies like mushrooms and toads.

All of my sps show really good encrusting (rather than reaching for the light) and good growth.

I run two 36", and eight 48" T5s across 4'x3' of surface area.

I don't run a chiller but I do have a rather noisy fan running through the canopy.