Dymax Lily Pipe Set with Surface Skimmer, 16/22mm

Stainless Steel Lily Pipe Set with Surface Skimmer for Larger Planted Tank Canister Filters

The Dymax Stainless Steel Lily Pipe Set with Surface Skimmer (16/22mm) is the larger-diameter version of the surface skimmer set, sized for 16mm ID / 22mm OD canister filter tubing — the standard for higher-capacity canister filters used on mid-size to large planted aquariums. It combines the outflow lily pipe, inflow pipe, hose clips, and surface skimmer attachment in surgical-grade stainless steel, carrying the full 1-year limited warranty.

In larger planted systems running high-flow canister filtration, the surface skimmer attachment is proportionally more valuable: greater tank volume and more plant matter means more organic material accumulating at the surface between water changes. The surface skimmer draws continuously from the waterline, passing the top layer of water through the canister's mechanical media and removing debris and biofilm before they can form a film that impairs gas exchange or visual clarity.

The 16/22mm set's higher-diameter inflow also handles more surface water volume per unit of time than the 12/16mm set, making it the practical choice for large planted tanks where a single surface skimmer needs to manage the surface area of a 50- to 100-gallon or larger footprint.

Key Features:

• Surgical-grade stainless steel lily pipe set with surface skimmer attachment for larger canister filter systems
• Surface skimmer continuously removes debris and biofilm from the water surface
• Sized for 16mm ID / 22mm OD canister filter tubing for mid-size to large planted tanks
• Outflow lily pipe creates circular surface current for gas exchange and CO2 distribution
• Resistant to rust, scratches, calcium buildup, acidic water, and alkaline water
• Includes outflow lily pipe, inflow lily pipe, surface skimmer attachment, and hose clips
• 1-year limited warranty (CoralVue / Dymax)

Ideal For:

• Mid-size to large planted tanks of 50 gallons or more running a higher-flow canister filter with 16/22mm tubing, where surface biofilm management is especially important given the larger surface area and higher organic load
• Advanced aquascapers building a large Nature Aquarium or Dutch style layout under a closed canopy or with deliberately low surface agitation for CO2 retention, who want the complete stainless steel surface management solution in one set
• Hobbyists upgrading from a standard lily pipe set who experience recurring surface film on a larger planted system and want an integrated solution rather than a separate add-on skimmer

Pro Tips:

• On a large tank, position the surface skimmer on the side of the tank opposite the outflow. The outflow creates a circular current that moves surface water toward the far end of the tank. Placing the skimmer intake on that far end means the current carries surface debris directly toward the skimmer — maximizing capture efficiency across the full tank surface rather than just the area near the skimmer.
• Monitor canister maintenance frequency after installing the skimmer. The surface skimmer adds a continuous stream of surface material into the canister's mechanical stage. On a large planted tank with significant plant mass and feeding activity, this can accelerate the rate at which the filter sock or sponge loads. Check mechanical media weekly for the first month after installing the skimmer to calibrate a new maintenance schedule.
• Confirm your hose OD before ordering. The 16/22mm refers to 16mm inner diameter and 22mm outer diameter tubing. Measure the outer diameter of your existing canister hose with calipers — if it measures 22mm, this is your size. If it measures 16mm, select the 12/16mm set.