So currently I’ve noticed my Chaeto stopped growing. When I originally started the refugium, I decided to run the lights 24:7 and the Chaeto pretty much exploded. Since it grew so much I decided to trim it back and turn the lights down to 12 hours a day opposite to the display lights. I turned them down to 12 hours a day since I was getting tons of different algae growth in the sump. Not that it’s bad since I see it’s pretty common to have different algae growth in the sump. Im starting to wonder if changing the light schedule had anything to do with my Chaeto not growing. I decided today to ramp my lights back to 22 hours a day. Let’s see if that makes any difference. I would love to hear if others have had this happen and what you did to fix or just remove the refugium.