Wlachnit, it's growing cheato very fast. While waiting for the second one,I have been moving some of the cheato to my second sump. It has led lights that lfs sold me a couple of years ago, but they don't do nearing the job the Kessil does. It is costly, especially 2, but from all my readings a good functioning refugium makes everything more stable. I am also using the trition method on my 150 gal. and it requires a good refugium.
If your interested call me in a couple of weeks and I should have a progress report by then. 510-655-3066. As we talked last year when your not busy I would like to see your aquarium. It's looking great.