One used Bubble Magus Automatic Skimmer Neck Cleaner ACS180 for Curve A8 Skimmer or skimmer with similar cup size of 180mm diameter.

This cleaner will keep the neck of your skimmer clear of skimmate which leads to higher efficiency and more skimmate actually making it into the skimmer cup. Keeping the neck of your skimmer clear is the best way to boost the performance and effectiveness of your current bubble magus skimmer.

Note: I have modified it for CO2 Scrubber Recirculation. If you don’t want this feature, I can revert it before delivery.