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" Lx 10.25" W x 2" H, Black)

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)

ALEGI Aquarium Sponge Filter Pad, Bio Filter Media Foam Sponges, Cut-to-Size Foam for Fish Tank (20"x20"x1" (50PPI))

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)

AQUANEAT 6-Pack Pre-Filter Sponge for Aquarium Shrimp Fry Fish Tank Filter 0.8” Intake, Replacement Foam Cover