Best Api Aquariums Filters in 2026

REPLACEMENT FILTER CARTRIDGE: Pack of 6 fits Marineland Penguin PRO Power Filters 275 and 375; also fits original Penguin Power Filters 200 and 350.

EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing mechanical and chemical filtration and making replacement fast, dry and effortless.

THREE-STAGE FILTRATION: Mechanically filters water through a pad of double-thick poly fiber.

Bio-Wheel technology delivers a three stage mechanical, chemical, and biological aquarium filtration

Certified flow rate of 75 GPH (gallons per hour), perfect for aquariums up to 10 gallons

The penguin power filter requires virtually no set-up, making it perfect for any fish lover

WITH ROTATING BIO-WHEEL: Patented Bio-Wheel technology provides excellent wet/dry biological filtration.

MULTI-STAGE FILTRATION: Delivers mechanical, chemical and biological aquarium filtration to maintain a clean aquatic environment.

MARINELAND FILTRATION PRODUCTS: Count on Marineland brand for the most reliable, technically advanced aquariums and accessories on the market.

POLISHING FILTER PADS: Helps to ensure a clean and healthy aquatic environment.

MECHANICAL FILTRATION: Screens out fine particulates to promote increased water clarity.

FOR USE WITH: Fits Marineland C-Series and Magniflow Canister Filters (see packaging for sizing details).

REPLACEMENT FILTER CARTRIDGES: Fit Marineland Eclipse Filtration Systems

EASY TO INSTALL: Pre-assembled cartridges slide easily into place, providing superior mechanical and chemical filtration and making replacement fast, dry and effortless

OPTIMUM WATER-TO-CARBON CONTACT: Patented ribbed backing ensures even distribution of carbon for crystal clear, clean water

CARBON BAG FILTER MEDIA: Easy-to-use bags contain Black Diamond Premium Activated Carbon.

FOR CHEMICAL FILTRATION: Removes discoloration, odors and impurities in aquarium water.

COMPATIBILITY: Fits all Marineland C-Series and Magniflow Canister Filters – Rite-Size S, T and X.

POLISHING FILTER PADS: Helps to ensure a clean and healthy aquatic environment.

MECHANICAL FILTRATION: Screens out fine particulates to promote increased water clarity.

FOR USE WITH: Fits Marineland C-Series and Magniflow Canister Filters (see packaging for sizing details).

CERAMIC FILTER RINGS Provides a porous surface area for the growth of beneficial bacteria

FOR BIOLOGICAL FILTRATION Important for maintaining a clean and healthy aquatic environment

COMPATIBILITY Fits all Marineland C-Series and Magniflow Canister FiltersQUANTITY Contains 140 ceramic filter rings

POLISHING FILTER PADS: Helps to ensure a clean and healthy aquatic environment.

MECHANICAL FILTRATION: Screens out fine particulates to promote increased water clarity.

FOR USE WITH: Fits Marineland C-Series and Magniflow Canister Filters (see packaging for sizing details).

BIO-FILTER BALLS: Provide a larger, multi-faceted area for the growth of beneficial Bio-Spira bacteria.

FOR BIOLOGICAL FILTRATION: An important component of maintaining a clean and healthy aquatic environment.

COMPATIBILITY: Fits all Marineland C-Series Canister Filters – Rite-Size S and T.

FOR CHEMICAL aquarium FILTRATION Black Diamond Premium Activated Carbon removes odors discoloration and impurities for clear sparkling aquarium water

SPECIALLY FORMULATED Composed of heat-activated bituminous coal-based carbon

FOR ALL FILTERS Ideal for use in all aquarium filters

REMOVES AMMONIA: White Diamond Zeolite removes toxic ammonia for a healthier aquatic environment.

FOR FRESHWATER: Use in freshwater aquariums and ponds as indicated.

IDEAL FOR NEW AQUARIUMS: Controls ammonia spikes to keep water clean and fish-safe.

BONDED aquarium FILTER PAD: Use with any type of aquarium filter, canister or sump.

EXTRA DURABLE: Effectively traps small dirt particles to prevent clogging.

CUT TO FIT: Make a cardboard template to fit your filter and cut to fit as directed on the product packaging.

Premium clarity: reusable bags hold biological media and bacteria cultures that support healthy water.

Compatibility: fits MarineLand Penguin and emperor Pro Filter media baskets and most external filters and canister filters.

Easy maintenance: Simply dispose of old media and rinse reusable bag clean.