Depending on what you want to keep, I would try to get at least 4 bulbs over it. If you keep the lights a bit higher up, you should be able to cover most of the tank.
I am planning on keeping all my le chalices and acans,so mostly sps.so I am stuck between the 4 bulb 4x24 now or a nova extreme 6 bulb 6x18.Which would be better?
actually now that I have looked I think I will stay away from the 18 watt bulbs because I see there is not as much variety as with the 24 watt bulbs.So I guess I am going with a 4 bulb fixture,so now what bulb combo would be best for lps mostly?
you don't need alot of light for most lps, besides maybe a few chalices. i wouldn't use alot of daylight lamps over a 6" deep tank unless you are putting sps in it.