Esctabalt Large Aquarium Filter Cartridges, 24-Pack with Six-Layer Media

Esctabalt large aquarium filter cartridges are made for Tetra Whisper Bio-Bag large filters, with six-layer media and compatibility with 20–60 gallon (75.7–227.1 L) aquarium setups.

• 24-pack of pre-assembled large cartridges — keep replacement filters ready for scheduled aquarium maintenance.
• Compatible with Tetra Whisper large units and IQ, PF, 20i, 40i, and ReptoFilter models — match the cartridge to supported filter housings.
• Six-layer media with dual-sided mesh and activated carbon — traps floating debris and helps clear yellow water and odors.
• Activated alumina absorbs nutrients algae feeds on — helps reduce the need for scrubbing.
• Zeolite and ceramic in the media — help keep aquarium pH stable.
• Brief rinse before installation and replacement every 3–4 weeks — makes routine filter changes straightforward.

These cartridges are designed for aquarium owners who want replacement media ready for their Tetra Whisper Bio-Bag large filter. The pre-assembled format is intended to make a routine change simple, while the layered media addresses floating debris, yellow water, odors, and algae-feeding nutrients. They are suitable for freshwater aquarium setups with tropical fish, turtles, frogs, or salamanders.

Which filters and aquarium sizes do these cartridges fit?

Esctabalt large cartridges fit Tetra Whisper Bio-Bag large filter setups for aquariums from 20 to 60 gallons (75.7 to 227.1 L). They are also compatible with filter models identified as IQ, PF, 20i, 40i, and ReptoFilter. Check that your filter uses the large Bio-Bag cartridge format before choosing these replacements.

• Cartridge size: large.
• Compatible filter families: Tetra Whisper, IQ, PF, 20i, 40i, and ReptoFilter.

What does the six-layer filter media do?

The six-layer construction combines dual-sided mesh with activated carbon, alumina, zeolite, and ceramic. Mesh catches floating debris, while activated carbon helps clear yellow water and odors. The alumina absorbs nutrients that algae feeds on, and zeolite and ceramic help keep pH stable.

• Dual-sided mesh captures floating debris.
• Activated carbon targets yellow water and odors.
• Alumina absorbs algae-feeding nutrients.

How do you install and replace a cartridge?

Rinse an Esctabalt cartridge briefly, then place it in the compatible filter housing; each cartridge arrives pre-assembled. The suggested replacement interval is every 3–4 weeks, giving aquarium owners a simple routine for changing the filter media. The pre-assembled design is intended for a low-dust, no-mess installation.

• Installation: brief rinse, then insert into the filter housing.
• Replacement timing: every 3–4 weeks.
• Cartridges arrive assembled and ready to install.

These replacement cartridges suit aquarium keepers using a compatible large Tetra Whisper Bio-Bag filter who want layered media for debris, water discoloration, odors, and algae-feeding nutrients. They are suitable for tanks housing tropical fish, turtles, frogs, or salamanders, within the stated 20–60 gallon range. Their fit, pre-assembled construction, and six-layer media make them a match for scheduled maintenance on supported filter setups.

Read our guide: Aquascaping a freshwater tank: substrate, stone, wood and light