had my new 75 setup for a little while now and everything was happy. have a 8" deep sandbed in my refugium so only put 2" in main tank origionally. had a 3/4 full bag of SD left and today decided to add it into the main tank figuring it can't hurt. let's just say my attempt to pour slowly through a funnel into a pvc pipe failed when i dropped the pipe into the tank and didn't have a free hand to stop up the funnel. i have sand everywhere and a huge freaking cloud. my fish have survived three moves now and do well in such conditions so i am not too concerned, hovever corals are still new to me. i have mushrooms, green star polyps, button polyps, and a green tree leather. do i wait it out or start with massive water changes? i have enough fresh mix made up to do up to a 50% change.