@Chunky: From what I've read the LEDs (buying a readymade fixture not DIY) don't give sufficient light for the deeper tanks, 20-21" water column. Maybe they're not Intended for planted tanks, just general lighting. I'm not handy enough to DIY my own led fixture else I probably would go there. Plus buying a ready made fixture it's great the LEDs last so long but then the fixture boils down to the parts and secure assembly, so if wiring goes faulty I wouldn't know how to fix it and would have spent $$$ for something I can't begin to tinker with. So t5 is the next best bet. Least the wiring is simple enough lol. However, you're right I've read good things about Finnex, but the reviews I've read were that the Ray2 gives off a high light range. I'd like to install whatever new fixture on feet (cannot hang off the ceiling) so the new light is going to be 4-5" off the surface of water. Maybe that is an option I can reconsider if I get a screen on top of the tank. Ideas to do a non-ghetto rigged screen for a bow front top?
@Drew: I've read that 2 T5HO is already high lighting for my tank, but I also think those experiences were based off larger tanks where the fixtures have bulbs that fit more of the fixture inside. A 24" bulb in a 30" fixture just seems like a rip-off. I see your idea on a quad 30" fixture, but that costs $$$ empty space, an aluminum air-filled box! Plus, wouldn't the light distribution be off on the ends of the tank? That's why I thought to get a 36" fixture, light from end to end.