I recently purchased a Euro-Reef RS 80 skimmer, which seems to be operating much better that the seaclone 100 I owned. The question is I have it set up for in sump operation and I am generating plenty of bubbles but they a white, I thought I would get alot of green and brown junk. My tank is very clear and have noticed that the algea problem I had isn't getting worse. My tank is a 46gal bow front with apporx 35lbs of LR, and 1 - 1 1/4" LS. 5 fish, 2 stars, 2 BTA, and numerous hermits and snails, plenty of circulation and adequate lighting. Water parameters are good. The other ? should I have to fine tune the skimmer every so often? Thanks for the advice in advance, I'm fairly new to the reef set-up and this has been alot of help. Thanks.......Dave