Good to hear, or read that is. I've been skimming for over a year but I do it with a canister filter so there is no open sump box to worry with. I also felt it was much better to skim so that I would be constantly exposing water to atmosphere to absorb O2 as needed and eliminate any worries with the fish. Everyone keeps telling me that the most likely problem I have with growth is low carbon so I'm trying to increase levels by adding more and/or decreasing loss. My Red Sea drop check should be arriving today so I'll be mixing KH solution and getting that setup tonight and finally have an accurate reference for CO2 levels in the tank. I've noticed links to several threads on preparing KH solution and setting up the drop check to measure CO2. Would someone be kind enough to point me toward the thread that is most recommended. Thanks...