Skip to product information
1 of 1

Fluval AquaClear AC20 Bio-Foam – AC20 Filter Media

Fluval AquaClear AC20 Bio-Foam is replacement foam filter media made for the Fluval AquaClear 20 Power Filter. The foam helps trap debris and particles while also providing surface area where beneficial bacteria can grow.

Bio-Foam can be rinsed and reused during routine maintenance until the foam becomes worn or begins to break down. It is useful for freshwater and saltwater aquariums using the AquaClear 20 filter, including betta tanks, shrimp tanks with intake protection, nano aquariums, and small community setups.

Key Features

  • Replacement Foam Insert: Made for the Fluval AquaClear 20 Power Filter
  • Mechanical Filtration: Foam helps trap debris and particles before water moves through the filter
  • Biological Filtration Support: Foam surface provides space for beneficial bacteria
  • Reusable Media: Can be rinsed and reused until the foam becomes worn or difficult to clean
  • Freshwater & Saltwater Use: Can be used in compatible aquariums when maintained properly
  • Routine Maintenance: Useful for scheduled AquaClear 20 filter media replacement and upkeep

Product Information

  • Brand: Fluval
  • Product: AquaClear AC20 Bio-Foam
  • Pack Size: Single foam insert
  • Compatible Filter: Fluval AquaClear 20 Power Filter
  • Media Type: Mechanical and biological filter media
  • Aquarium Type: Freshwater and saltwater
  • Best For: Routine AquaClear 20 filter media replacement and maintenance

Best Uses

  • AquaClear 20 filter maintenance
  • Betta aquariums when flow is adjusted appropriately
  • Shrimp tanks with intake protection
  • Nano freshwater aquariums
  • Small community aquariums
  • Planted nano aquariums
  • Small fish-only saltwater aquariums

How to Use

Install the Bio-Foam insert in the AquaClear 20 filter basket according to the manufacturer’s instructions. Make sure the foam is seated properly before restarting the filter.

During maintenance, rinse established foam in removed aquarium water rather than untreated tap water. This helps preserve more beneficial bacteria than rinsing under chlorinated water.

Maintenance Tips

  • Use only with the Fluval AquaClear 20 Power Filter
  • Rinse before first use if recommended on the package
  • Rinse during maintenance using removed aquarium water
  • Avoid replacing all biological media at the same time
  • Replace foam when it becomes worn, damaged, misshapen, or difficult to clean
  • Check filter flow regularly and service the filter when output slows
  • Use an intake sponge if shrimp, fry, or very small fish are present

Important Biological Filtration Note

Bio-Foam can support beneficial bacteria, but it does not replace proper aquarium cycling, regular water changes, correct stocking levels, or routine water testing. When replacing established filter media, avoid changing all biological media at once when possible.

Frequently Asked Questions

What filter does Fluval AquaClear AC20 Bio-Foam fit?
This Bio-Foam is made for the Fluval AquaClear 20 Power Filter.

Is Bio-Foam mechanical or biological media?
It functions as both mechanical and biological filter media. The foam helps trap debris and provides surface area for beneficial bacteria.

How often should AC20 Bio-Foam be replaced?
Replacement timing depends on aquarium conditions and media wear. Rinse and reuse the foam during maintenance, then replace it when it becomes worn, damaged, or starts to break down.

Can I replace all filter media at once?
It is usually better to avoid replacing all established biological media at one time. Gradual replacement can help reduce disruption to the biological filter.

Will this fit other AquaClear filters?
No. This Bio-Foam is sized for the AquaClear 20. Use the correct foam size for other AquaClear models.

Can this be used in shrimp tanks?
Yes, it can be used in shrimp tanks with compatible filtration. Use an intake sponge or proper intake protection if shrimp or shrimplets are present.

Can this be used in saltwater aquariums?
Yes, it can be used in compatible freshwater, marine, and FOWLR aquariums when installed and maintained according to the manufacturer’s instructions.

Available at Tropical Treasures Wyo

Fluval AquaClear AC20 Bio-Foam is replacement foam filter media for the AquaClear 20 Power Filter. Visit Tropical Treasures Wyo in Cheyenne, Wyoming, to shop Fluval AquaClear filters, Bio-Foam inserts, filter media, water conditioners, test kits, fish food, live plants, shrimp supplies, betta supplies, and aquarium care essentials.


Explore More Aquarium Products:

Regular price $6.99
Regular price Sale price $6.99
Sale Sold out
Shipping calculated at checkout.
Quantity

Out of stock

View full details