I returned from a two week vacation to the biggest algae bloom I've ever seen. My CO2 solenoid failed, letting CO2 bubble in nonstop. This, and some likely over feeding from my auto feeder, made things ideal for algae growth. Some coral are retracted, but I think everyone is still alive. I did a water change today and will do another tomorrow. I ordered a new solenoid.
January 2, 2015 21:13