This Medium Biochemical Sponge Filter provides powerful mechanical and biological filtration for aquariums from 15 to 50 gallons. Designed with a dual sponge system and upgraded ceramic bio media, it enhances water clarity, supports beneficial bacteria growth, and keeps your tank stable and oxygenated.

Its 7-layer ribbed sponge structure maximizes surface area for bacterial colonization, while the 360° adjustable oxygen outlet ensures consistent aeration with no dead zones. Safe for baby fish, shrimp, and delicate species—ideal for freshwater and saltwater tanks.

Key Features

• Dual Sponge Bio Filtration
  7-layer ribbed sponge design provides mechanical + biological filtration to trap debris and grow beneficial bacteria.

• Includes Ceramic Bio Media
  Each filter chamber contains ceramic balls that help break down harmful substances and improve water quality.

• Ultra-Quiet Operation
  Works with any standard 4 mm air pump (not included) to create silent, energy-efficient filtration.

• Easy to Clean & Replace
  Sponges detach quickly for rinsing or replacement without disturbing tank inhabitants.

• Flexible Placement
  Strong suction cups let you mount the filter anywhere, easily hidden behind aquarium décor.

• Perfect for Sensitive Aquariums
  Great for bettas, shrimp tanks, fry tanks, nano fish, and community aquariums up to 55 gallons.

Package Includes

• 1 × Double-Head Sponge Filter (Medium)

• 2 × Suction Cups

• 4 × Bags of Ceramic Bio Media

• 4 × Spare Sponge Replacements

(Requires a separate 4 mm air pump & airline tubing)