WaterYalan Aquarium Filter Media, Sponge for Fish Filter,11.8*15.7 Fil – PETOLY

UPETTOOLS Aquarium Biochemical Sponge Filter, Ultra Quite Aquarium Air Pump Double Head Bio Sponge Fish Tank Foam Filter : Pet Supplies

Pawfly Aquarium Nano Bio Sponge Filter Quiet Fry Betta Shrimp Foam Filter Kit with Airline Tubing for Small Fish Tank up to 3 Gallon : Pet Supplies

Dimension: 11 Lx 10.25W x 2H, PPI: 40 black fine The open cell sponge has a much larger inner surface area for filtration capacity. This filter pad can be cut to fit and used as a pre-filter for any aquarium or pond filter, sump, wet/dry, canister, power filter etc. or your HMF DIY project. The reticulated structure also provides better flow rate of water and less chance of clog. The size of pores is measure in pores per inch (PPI). The sponge with higher PPI has more pores in it.

Aquaneat Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider 11 x 10.25 x 2/ 23 x 12.25 x 2 (11

3IN1 Aquarium Filter Sponge Foam Pads - Filter Media For 20 Gallon Betta Fish Tank Supplies, Brine Shrimp Coarse Sponge Bio Filter Sheet - Filter Sponge Accessories (3IN1 Filter Sponge) : Pet Supplies

UPETTOOLS Aquarium Biochemical Sponge Filter, Ultra Quite Aquarium Air Pump Double Head Bio Sponge Fish Tank Foam Filter : Pet Supplies

Dimension: 11 Lx 10.25W x 2H, PPI: 20 blue coarse The open cell sponge has a much larger inner surface area for filtration capacity. This filter

AQUANEAT Aquarium Filter Sponge Open Cell Foam Sheet Bio Sponge Filter Media Pad HMF Fish Tank Sump Divider (11 Lx 10.25 W x 2 H, Blue)

Package includes: This package contains 6 black aquarium filter pads, providing you with a long-lasting supply of high-quality filter sponges. Perfect

ALEGI Aquarium Bio Sponge Fitler Media, 6.28 x 5.5 x 0.78 Inch Fish Tank Filter Cartridge Filter Foam Pad Inserts for ML350 (6 Pack)

Ailindany Mini Sponge Fish Filter 3-in-1 Filtration Ultra Quiet Air Pump Filter for Aquarium Fish Tank : Pet Supplies

UPETTOOLS Aquarium Biochemical Sponge Filter Ultra Quiet Aquarium Air Pump Bio Sponge Fish Tank Foam Filter Comes with 2 Sponges 2of Bio Ceramic Media Balls (Black Filter +2 Sponge +