The Tunze Comline DOC Skimmer Holiday Cup 9012.145 is a specialized collection cup designed to replace the standard cup on the Tunze Comline DOC Skimmer 9012. Its primary function is to allow for the continuous, external collection of skimmate. This upgrade provides a significant increase in collection volume, enabling your protein skimmer to run for extended periods without needing to be emptied, which is crucial for maintaining water quality when you're away from the aquarium.

This high-capacity cup features a dedicated outlet port that connects to the included silicone hose, allowing you to direct the waste into a larger external receptacle like a bucket or jug. The kit comes complete with a generous 78.7-inch silicone hose, providing ample length and flexibility for placing your collection container discreetly within your aquarium stand. The installation is simple, directly swapping out the original skimmer cup for this enhanced version.

This accessory is an essential purchase for aquarists who travel, manage professional aquarium systems, or run heavily stocked tanks that produce a large volume of skimmate. By automating the waste removal process over a longer duration, the Holiday Cup provides peace of mind and ensures system stability during vacations or busy periods. It effectively reduces the frequency of daily maintenance tasks, making it a valuable tool for any serious reef keeper.