I have a 29g Biocube w/1 150w HQI. I run an open top and have no heat issues. My tank is
overstocked w/ 6-fish and about 26-corals witch 15 are sps.The Biocube has good surface
skmming when you open the area between chamber 1 and chamber 2 witch will increase water flow. I do plan on a step up to 250w HQI because the light doesn't cover the tank very well. The 150w pod sets about 4-5 in above the water witch gives me 6in to top of my sps corals. I have found that most sps are raised in 250w or higher and the colors don't quite
match the mother colonies when a 150w is used. River city has alot of Biocubes in stock
aswell as AquaTek,but Horizon when he has them are $100 less for tank and stand combo.

Donnie