Hi everybody. My scrubber is up and running for 24hrs now. I got some colour on it after ~12hrs,a brown with a tint of green,or so it seems to me. Dim. are 12/20cm,enough for 3 cubes/day. Lights are 2x20W led flood lights,6500 K,maybe not the best choice,but they were just lying around and I thought I should give them a go. Will post some pics later.