Lees Aquarium 2.5-Gallon Bio-Pin Ball - Small - 300 Count

Lee's Aquarium 2.5-Gallon Bio-Pin Ball is a state-of-the-art filter media for use in fresh and saltwater wet/dry systems. They may be connected together or randomly placed in the filter box. Bio-Pin Balls help produce turbulence, aiding in the gas-exchange process. The void space between Bio-Pins is ideal for the movement of gasses like oxygen and enhances contact with nitrifying bacteria living on the media surfaces.

Each Bio-Pin Ball has 110 Bio-Pins (drip points). There are 120 balls per gallon. One cu ft of media has approximately 150 sq ft of surface area. Suggested usage is 1 gallon of Bio-Pin Balls per 20 gallons for saltwater and 1 gallon per 35 gallons of freshwater.

• Small 2.5-gallon bio-pin ball
• 300 Count
• Use with fresh or salt water wet/dry filters
• Each bio-pin ball has 110 bio-pins (drip points)
• Outside diameter: 1.4"
• Made in USA