Truth is, I am tired of this tank's algae problem. I can suction it off the rocks and sand daily to no good. It comes right back. I really hate to kill the lights again too. It seems to really really stress my fish, and I almost lost my sunset monti, and my purple haze monti is still not recovered. I was trying another method that just doesn't seem to be working either. I will be setting up the fluval fx-5 today, but I don't think it will give me much help. If it doesn't, I have only one option. If the 20g nano I am working on does as good as I think it will, I will downgrade back to the 75g after I drill it too. Then, I can always set this tank back up later. But I doubt I will. I would have to say goodbye to my tangs, and chromis. I would only keep my anthias, clowns, mandarin and tail spot blenny. Not meaning to rant on here, just throwing my thoughts out there....