Okay, thanks for the answers. I'm going to go ahead and try to add mangroves and chaeto and of course cucs, but will wait until our Reef Cleaners group order goes out around the 19th. This will give me two more weeks to increase the lighting time, see about fixing up another light fixture with more 6500K bulbs as recommended, and adding an eggcrate rack to support the mangroves. Don't know if I'll increase from a 200g powerhead as it seems to be doing a good job of agitating the water.
One thing I did do when I originally set it up was put a top on the tub consisting of a 1/8" 2'x4' light difussing panel used for overhead fluorescent fixtures. The panel was flexible enough that I could bow it inward to allow any water splashed up or condensation to drip back into the tub and not down the sides. Also added a wood frame to hold the light fixture and keep the tub from bowing outward (it wasn't as tough as the ad made it out to be). Main thing is it works and was/is cheap.
again thanks,
wayneb