In the test i see no mention of a Skimmer? does this not need a skimmer to work?
Did not bother to go into the whole removal of the microbiota, as I thought it was getting a bit looong and I (safely?) assumed that the vast majority of hobbyists employ skimmers.
Also, I believe a skimmer is not a prerequisite for the cubes to function, as the biomass ejected make awesome coral food. In essence, enough polyps in the water and enough flow........
