Originally Posted by solidsnakejv
I opted to do only 30 gallons last thursday after I saw my xenia was being exposed to air. I'll do another 20 tonight. I've been physically removing the algae on a daily basis. The nitrates were at 15 before the water change but I haven't tested again. I've also been doing the vodka method and got the skimner working properly.
It is ok to expose xenia and other corals to air for a short while. Try waving your hand in the water near your corals to get them to close up prior to exposure. This will help as well. You just don't want to expose sponges to air at all and corals for a limited time.