- 🧽 THREE REPLACEMENT SPONGES: Includes three reusable bio-foam filter sponges for routine aquarium filter maintenance and custom filtration projects.
- 🔧 COMPATIBLE WITH FK030 FILTERS: Designed for the fishkeeper FK030 aquarium filter series. Check your existing filter model and sponge dimensions before ordering.
- 📏 CUT-TO-FIT FOAM: Each sponge measures approximately 2.95 × 2.76 × 2.44 inches and can be trimmed for compatible filter chambers or DIY applications.
- 💧 FINE MECHANICAL FILTRATION: The porous foam helps capture suspended debris, leftover food and fish waste as aquarium water passes through it.
- 🦠 BIOLOGICAL MEDIA SURFACE: The sponge structure provides surface area where beneficial aquarium bacteria can develop as part of an established filtration system.
- ♻️ WASHABLE AND REUSABLE: Rinse the sponge gently during routine maintenance instead of replacing it after every cleaning.
- 🐠 DIY INTAKE PRE-FILTER: After removing the internal rod, the foam can be adapted to compatible filter intakes to help reduce the chance of fry, shrimp or snails being drawn in.
- 🌿 FRESHWATER AND SALTWATER USE: Suitable for compatible freshwater and marine aquarium filtration systems when cleaned and installed correctly.
Replacement Bio-Foam for Aquarium Filters
The fishkeeper Aquarium Filter Replacement Sponge Set includes three reusable foam media pieces for the FK030 filter series and compatible DIY filtration applications.
The fine, porous structure captures visible debris while offering surface area for beneficial bacteria within an established aquarium filtration system.
Designed for fishkeeper FK030 Filters
The sponges are shaped for use with the fishkeeper FK030 aquarium filter series.
Confirm Compatibility Before Ordering
Compare your existing filter model and media compartment with the stated sponge measurements. The aquarium filter, pump and other accessories are not included.
Three-Piece Replacement Set
The package contains three sponge media pieces, allowing owners to maintain a replacement supply or stagger cleaning between filter sections.
Mechanical and Biological Filtration Support
Aquarium water flows through the porous foam, where suspended particles can become trapped.
Captures Everyday Debris
The fine foam helps collect fish waste, uneaten food, plant fragments and other visible particles before they circulate back into the aquarium.
Surface Area for Beneficial Bacteria
Once established, the sponge can support bacterial colonies involved in the aquarium nitrogen cycle. It should not be treated as an instant replacement for mature biological media.
Cut-to-Fit Design
Each sponge measures approximately:
- Length: 2.95 inches / 7.5 cm
- Width: 2.76 inches / 7 cm
- Height: 2.44 inches / 5.7 cm
Custom Filter Chambers
The foam can be trimmed carefully to fit compatible media compartments without compressing it so tightly that water flow becomes restricted.
DIY Pre-Filter Applications
After removing the internal filter rod, the sponge may be fitted over a compatible intake tube to create a simple pre-filter.
Helps Protect Small Aquarium Animals
Using sponge material around a compatible intake can reduce the opening size around the suction area.
Suitable for Fry and Shrimp Tanks
A correctly fitted pre-filter may help reduce the likelihood of baby fish, shrimp or small snails being drawn directly into the filter intake.
Monitor Water Flow
Fine foam collects debris over time and can restrict circulation. Check the sponge regularly and clean it whenever flow begins to decrease.
Cleaning and Reuse
The manufacturer recommends checking and cleaning the media approximately every one to two weeks, depending on aquarium stocking and waste levels.
Rinse in Removed Aquarium Water
Gently squeeze and rinse established sponge media in water removed during a water change. Chlorinated tap water may damage beneficial bacteria.
Avoid Replacing Every Sponge at Once
Stagger sponge cleaning or replacement whenever possible to preserve more of the aquarium’s established biological filtration.
Product Specifications
- Brand: fishkeeper
- Model: YUS030 / YUS030 3pcs
- Product type: Aquarium replacement filter sponge
- Pack quantity: 3
- Media type: Fine bio-foam sponge
- Individual size: 2.95 × 2.76 × 2.44 inches
- Metric size: 7.5 × 7 × 5.7 cm
- Primary compatibility: fishkeeper FK030 filter series
- Reusable: Yes
- Washable: Yes
- Customisable: Can be trimmed for compatible applications
- Alternative use: Aquarium intake pre-filter
- Filter included: No
Aquarium Safety Information
Rinse new sponges in clean, dechlorinated water before installation. Never wash established biological media with soap, detergent or household cleaning products. Monitor ammonia, nitrite and water flow after changing filter media, and avoid replacing all mature filtration material simultaneously.
