Hey there, yes I got a few aiptasia's in there!!! Im hitting them with Kalk and I have 10 pepp shrimp comming to me. I got rid of alot of them but still have many to go..Im getting rid of them slowly cause the Kalk messes with some water perameters...Na no sand blowing around at all, I mean theres alittle that was moving around when I 1st put them in there, but it stoped when everything settled, I had more of a storm in the tank from the Tunzes blowing crap off the rocks, but everything is all blown off and things have settled. Its comming along, Im still trying to take it slow for now until the aiptasia and some of the algea goes away.