If you want good pricing on MH
lighting, diyreefs.com is where I got mine. If you get the MH
with at least 14K or better bulb, there is plenty of blue in there. You can get 2 of these below $400.00 to do the job. Since you have a 6 foot tank, you would most likely need 3 of them since it covers about 2 feet each. Before I realized that, I had already purchased the Coralife 4x65w pc
setup. Since I have it, I run it in parallel with the MH
. Each one is 250w, so there is plenty of lighting (760w) to do what I want. I'm not sure what that is yet, but at least I won't be limited as far as lighting is concerned. 8)
Heating was a factor for me, so I had to build a canopy 15", so it would be around 12" above the water. Also, I installed 2 fans (one on each side) to run over the water to keep it cool. To be honest, the fans help so much, that the temp only changes about a degree or 2 during the day, but I have the back completely opened.
option - You can run MH
on the left and right side, and maybe some pc
's in the middle. There are lots of configurations.