Like the title says. I was using 2 full spectrum par 38's on my 2 foot fluval m60. Colors looked great but i felt the amount of light was a little lacking and for some reason i've had a problem growing ricordea. I bought a coralife 24 inch 4x24 watt 10,000k and 460nm actinic fixture, set it up, and the tank looked like poop. Colors looked like a petco tank...the tank was well lite but just white washed. Resembled a 10k halide even with the actinics. Any suggestions? At this point i may just stick with LEDS