I'm still on the fence regarding LED lighting. Not because of their effectiveness, but because of the price. I see this becoming much less prohibitive in just a few more years....it's already gone down some, but I think it's going to continue to drop. In the meantime, I'm planning on using an Aquatraders MH fixture on the big tank (bulbs replaced with phoenix, of course) because I just can't justify the cost of the current LEDs to The Wife.