Hey Guys,

So I'm in the throws of trying to work out what exactly I'd like to start planning for my *next* tank, but I'm having a bit of issue working out exactly what lighting requirements are met by which lighting. I quite like these :

http://www.marinedepot.com/ps_viewit...TFILDTN-UU1111

Would those however compete with MHD? And, lets say I wanted to do a 100 Rimless, what type of lighting would I want to get to do a whole spectrum of corals? Would two of the above LED fixtures cover the requirements?

Would one of these be better?

http://www.marinedepot.com/48_Inch_I...FIT58U-vi.html

Basically, help me understand lighting!!