20 gallon setup questions

[renisel]

I've had a 75 gallon reef for a while and now I'm considering setting up a 20 gallon tank primarily for corals. I picked up a 24" 2X65W PC fixture a while ago for a really good price, so I'm planning on just using that for lighting. Should that be sufficient for hard corals, or should I give more serious consideration to MH?
Also, I wasn't quite sure what to do about filtration for it. I was thinking about trying a DSB and a skilter. Any thoughts on that? I've heard that the skilter sucks at skimming, but how much organic waste will really be produced if I just have corals, some hermits and shrimp, and maybe a clown and a goby--or something along those lines?

 

[zanoshanox]

i've got a 20 long full reef, its been set up for about 2 years, and i use 2x65 w pc. I've kept pretty much all LPS, softies, zoo's, some anemones, and even a couple hard corals. You'll like them

 

[renisel]

Cool, thanks. So how do your hard corals do with that setup? Do they thrive, or do they seem to be just getting by? What do you use for filtration?