Pawfly Aquarium Sponge Filter, Small Fish Tank Filter with Foam and Air Stone, Sponge Filter for Fish Tanks up to 5 Gallons (Air Pump Not Included)

Price: $6.99
(as of Jan 11, 2026 09:57:30 UTC – Details)

Product Description

The sponge filter is designed for 0-5 gallon tanks, with a compact size of 2.95" L x 2.95" W x 2.25" H, making it perfect for nano fish tanks. It is ideal for breeding and feeding fry, shrimp, or various ornamental fish.

Features

• Compact size: 2.95" L x 2.95" W x 2.25" H
• Gentle mechanical filtration with a porous sponge
• Deep bio filtration with mini filter balls
• Quiet aeration with air-powered filter (requires an air pump < 2 W)
• Easy to clean and maintain

How it Works

The porous sponge gently filters visible debris, uneaten food, fish waste, and other impurities, helping to keep the water crystal clear and providing a cleaner habitat for aquatic pets. The mini filter balls at the bottom help block larger particles and provide a surface for beneficial bacteria to thrive, boosting biological filtration to maintain a stable and healthy aquatic environment. The air-powered filter produces a steady stream of dense bubbles, significantly enhancing oxygen circulation to improve the comfort and overall well-being of fish.

Specifications

• Size: Small, Medium, Large
• Dimensions:
  • Small: 2.13 x 2.4 inches
  • Medium: 3.2 x 2.2 inches
  • Large: 4.1 x 2.2 inches
• Max Air Flow Rate:
  • Small: 9.5GPH(0.6 L/min)
  • Medium: 12.5GPH(0.8 L/min)
  • Large: 20.5GPH(1.3 L/min)
• Required Air Pump:
  • Small: < 2 W
  • Medium: < 4 W
  • Large: < 5 W
• Application:
  • Small: 5 Gallons Tank
  • Medium: 5-20 Gallons Tank
  • Large: 20-40 Gallons Tank

Pros

• Compact and easy to install
• Gentle on fish and other aquatic life
• Effective in keeping water clean and clear
• Quiet operation
• Easy to clean and maintain

Cons

• Requires an air pump (not included)
• May need to replace the sponge every 2-3 months for optimal performance

Customer Reviews

The product has an average rating of 4.1 out of 5 stars from 403 reviews, indicating high customer satisfaction. Some reviewers have noted that the filter is easy to set up and effective in keeping their tank clean, while others have mentioned that it is quiet and gentle on their fish.

Price and Availability

The price of the product varies depending on the size, with the small size available for $7.59, the medium size for $9.99, and the large size for $12.99. The product is available for purchase on Amazon.