hygger Aquarium Sponge Filter Internal Foam with Ceramic Balls 5-91L

Key Features

• Filtration Type: Precision double filtration using high-density biochemical cotton and a bio-ceramic ball chamber for mechanical and biological filtration.
• Versatile Use: Suitable for breeding and fry tanks, betta, guppy, shrimp, snail setups; can be used as pre-filter or auxiliary filter for larger tanks.
• Operation: Air-driven sponge filter powered by an air pump; water passively flow through sponge for filtration. Note: air pump and airline sold separately.

Filtration & Oxygenation Details

• Biochemical cotton with high-density pores captures impurities efficiently.
• Filter chamber includes bio-ceramic balls to help break down waste and support beneficial bacteria.
• Built-in bubble stone increases dissolved oxygen and creates a gentle bubble output.

Use & Maintenance

• Two sponges are included; one remains in the filter, the other is spare for quick replacement.
• Detachable filter container accepts other media as needed.
• Attach to an air pump, saturate the sponge with water, then submerge. Rinse sponges with tank water about every 2–4 weeks to maintain performance.

Available Sizes

• Small: 7.3 cm W x 11.2 cm H — suitable for 5–91 L tanks (depth under 40 cm).
• Medium: 7.3 cm W x 16.5 cm H — suitable for 91–250 L tanks (depth under 50 cm).
• Large: 10 cm W x 17.7 cm H — suitable for 250–568 L tanks (depth under 67 cm).

Designed for reliable biological and mechanical filtration in small to medium aquariums, while also serving as an effective pre-filter or auxiliary option for larger setups.