T tent boy New member Feb 16, 2011 #1 I have had a recent invasion of hair algea. The halides are fairly new but the actinics are about 2 years old. Could that be a cause by itself?
I have had a recent invasion of hair algea. The halides are fairly new but the actinics are about 2 years old. Could that be a cause by itself?
Gary Majchrzak Team RC Feb 17, 2011 #2 your actinics need replacing but it's not what's causing your algae problem