PNW Reefer
New Member
Quick question. Running a 30 gal reef with a Fluval 206 can for filtration and a Koralia 425 for water movement. I plan on adding an extra pump for more water agitation, just haven't done it yet. Did my water change yesterday and noticed that I had a greasy film on the surface of my water. Can anyone recommend a skimmer to remedy that film or a different approach?