I have skimmate! After the cleaning, and put in water level 9" up from 7... now at 10" it is pulling out fair. I think I'll keep it for now. as it is pulling out 1-2 oz of light.mediun skim with light - medium fed tank , my few fish eat a lot, so for number of fish in tank. 2 osff and 4 neon gobies, the tank gets a lot of food. But I think it's skiming ok. If I get more livestock corals, etc, I will probably revisit this. But if you have a urchin, raise the sump level and rinsie it good with vinegoar dilution -- still i'm sure not as good as the RO would be.
