refuge

Currently trying to use this light on its blue setting to grow chaetomorpha. Already had the light so I figured its worth a shot and fits nicely mounted on the sump but I see a lot of red light spectrum in refuge lights so not sure if its a necessity or just better for growing. I know its better...

Approximately 18 hours ago I seeded my ATS with GHA, as it was all I had growing in my refugium other then Chaeto. and there has already been significant growth. its incredible! however, every time I research ATS I hear everyone talking about Ulva algae... I would love to know how y'all are...

Hello! I’m very much a newbie, currently gathering all the information I can before I start putting together my tank. I have a few questions about filtration. I’m sure these questions are answered elsewhere on this site but I haven’t found the exact answers I’m looking for. Here goes: I have a...