Looks like you're off to a good start! Real nice red zoas!! Good luck with algae issue. Weekly water changes were key to getting rid of the hair algae and red slime that popped up in my Biocube. Cutting my lights back, increasing flow, and running chemi-pure elite, purigen, and carbon with some filter floss has been a great help as well. You could look into getting some nassarius, olive snails, or small conchs to help stir up the sand as well. I'd recommend nassarius because they are the cheapest and seem to do the job well enough. ;)