20g Nano Lighting

[Fin McCoul]

I have a 20g nano that has been running for about 4 months. I have 4 24" VHOs suspended in a hood from the ceiling for lighting. The hood is about 6" from the surface. I have a couple SPS (monti cap, yellow pocillopora, and millepora). They are all growing fairly well under the VHO. I am thinking of upgrading my lighting to MH plus the actinic VHO.
Is it better for me to get 250w, raise the hood, and run a fan? I will be running at 20w per gallon. Is this too much light for a small tank. So long as heat isn't a problem, and I acclimate the corals to the light intensity, would the penetration from the 250w be better?
Any suggestions would be appreciated!

 

[Fin McCoul]

^

 

[JimBob Schmidt]

Well, you could do that but imo it would be better to get a 150w 10k mh and supplement with atinics. But do you have any other corals in the tank? 250w may bleach the sps but would def. do a number on any softies and zoo's

 

[CamBarr]

why not try T-5's less energy consumption and alot less heat
check this link out

it's alot bigger but same principal right

http://reefcentral.com/forums/showthread.php?s=&threadid=812416