So here i am back again, been awhile since i posted or even spent much time with my tank. The last year i could not look after my beautiful tank so gave all the fish and corals to a friend to hold. I wanted to get the tank going again when things settled down so i kept all the water going. Problem is aiptasia has taken over the tank and glass. I am thinking since nothing is in the tank i might just take out all the rock and sand and start over. Maybe cook all the rock? maybe wash and scrub and leave outside for a couple weeks? Drain the tank and wash the glass with vinegar. Can someone please give some sound advice. Thank you in advance.