Penn-Plax Bio-Floss Aquarium Filter Pads, White 6-Pack for Cascade 1200/1500

Penn-Plax Bio-Floss replacement poly fiber pads provide mechanical filtration for Cascade 1200 and 1500 canister aquarium filters, with six pads that fit directly into the media trays without cutting.

• Traps fine detritus — captures particles such as fish waste, uneaten food, and decayed plant material.
• Helps address discoloration and foul odors — removes small particles that can affect aquarium water clarity and smell.
• For freshwater and saltwater aquariums — use the pads in either type of aquarium.
• Supports beneficial filtration — promotes colonization and helps regulate ammonia, nitrite, nitrate, and phosphate levels.
• Helps protect finer filter media — reduces clogging and supports the function and lifespan of other media and the filter.

When aquarium water contains suspended waste, finer filter media can become clogged as it catches particles. Bio-Floss is designed to handle mechanical filtration by physically trapping detritus, supporting clearer water while helping the other media in the filter do their own jobs. It is made for routine media replenishment in compatible Cascade canister filters and is suitable for freshwater or saltwater aquariums.

What does Bio-Floss capture from aquarium water?

The poly fiber pads physically trap small particles of detritus as water passes through the filter. Capturing this material helps clear discoloration and reduce foul odors, and supports healthy, crystal-clear water in the aquarium. The filtration is mechanical: the pads catch particles rather than relying on a chemical treatment.

• Examples of trapped material include fish waste, uneaten food, and decayed aquarium plant matter.
• Particle capture helps keep detritus from clogging finer filter media.

Will these pads fit my Cascade canister filter?

Yes. The pads are made for Cascade 1200 and 1500 canister filters and fit directly into their media trays, so they do not need to be cut to size. Each white pad measures 8 x 6 x 1 in (20.32 x 15.24 x 2.54 cm). The six-pad package measures 6.25 x 3 x 9 in (15.875 x 7.62 x 22.86 cm).

• Package contents: six replacement poly fiber floss pads.
• The stated age range is all life stages.

Can I use the pads in freshwater and saltwater aquariums?

Yes. Bio-Floss is suitable for both freshwater and saltwater aquariums. In addition to catching debris, it provides a vehicle for the colonization of beneficial filtration, which helps regulate ammonia, nitrite, nitrate, and phosphate levels. By helping prevent finer media from clogging, the pads also allow those media to perform their filtration tasks and help extend the lifespan of other media and the filter itself.

• Designed for mechanical filtration alongside other filter media.
• Helps maintain the performance of finer media by limiting particle buildup on it.

Penn-Plax Bio-Floss is suited to aquarium keepers replenishing media in a Cascade 1200 or 1500 canister filter, whether the aquarium is freshwater or saltwater. Its six ready-to-fit poly fiber pads trap detritus while helping protect finer media from clogging.