Aquatic Experts Aquarium Filter Sponge - SpongeFirst - Biological and Mechanical Aquarium Sponge Filter Pad for Clear Water (Blue

IMPROVE WATER CLARITY: SpongeFirst foam aquarium filter pad has a complex structure to easily trap floating debris from aquarium water producing clear water. SpongeFirst is an open cell foam filter constructed to promote water flow at the same time prevents premature clogging.
BIOLOGICAL FILTRATION: Our SpongeFirst foam filters for aquarium has plenty of surface area to create superior biological filtration. Beneficial bacteria grows on the aquarium filter sponge. These filter pads for aquarium are 12 by 36 inch by 1 inch thick and approximately 40 pores per square inch (ppi)
CUT TO FIT - SpongeFirst foam filter pads can easily be CUT-TO-FIT MOST FILTERS including hang on the back, canister filters, wet/dry filters, sumps, pond filters, and much more.
DURABLE AND EASY TO CLEAN: Our sponge filters are made to last a long time. The dense structure of our SpongeFirst foam pad media prevents tearing, making them easy to clean and reuse. We make our foam tight enough to hold beneficial bacteria yet open enough for waste to be easily rinsed away.
ENVIRONMENTALLY FRIENDLY: Our sponge pad is completely non-toxic and 100% safe for saltwater and freshwater fish aquariums and terrarium tanks. Made in the USA!

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