Its more about me not being able to justify paying 150 bucks for a couple feet of pvc and a couple powerheads that make bubbles. As long as it works even a little bit its saving me a lot of money. On a side note I have re-aquascaped the rock to have it show the colors better. I got some pretty nice looking pieces with decent coraline coverage. I am verry happy with my new lighting, and Im waiting to order the mounting brackets so I can raise it above my tank, and leave the top open, which I think looks much better.