Henry
Thank you for the help. I'm guessing that the drawing is of a bulk head with pvc fittings back into the sump. thanks for the pic it really helped. I've read that you should still skim with the refugium but just not as much. Any opinions? If I go with the refugium, I was planning on skimming until it was established. Just a month or so. is this a good idea? Every time I take my skimmer off I have a lot of nuciance algae. In case I decide to go with a skimmer has any one used or know anyone who uses the kent nautilus skimmer.