It usually takes about a week for a new protein skimmer to break in. When adjusting your skimmer, start with the air input at maximum and slowly push the skimmer collection cup down until you see the type of skimmate desired (dark brown to black coloration, and not too watery, is ideal). Be patient and allow for a day or two after each adjustment to evaluate.

No. Protein skimmers remove organic compounds such as food and waste particles from saltwater aquariums. To help remove surface films, use a surface skimmer.

This is due to the fish-protecting colloids included in Fluval Aqua Plus Water Conditioner. Simply shut off your skimmer for a couple of hours to prevent this from happening in the future.