Sump..am i suppose to take it out from the DT?
Like rkaragozler said, depends on how you skim, wet or dry. If it is wet, then you will skim green to dark green, when dry it will be even darker. If it smells then you're skimming good stuff. Also depends on your bio-load, fish, coral, and feeding.is it normal that it skims kinda dark green
It can the reason why its dyeing off.Sump..am i suppose to take it out from the DT?
If the freshly made water is coming into contact with your chaeto, it will shock the hell out of it. Just my two cents.If your sump is that big then i would do it thru sump, while your doing a water change siphon out ant ditritus that builds up in their.