Seeded Aquarium Sponge Filter – Beneficial Bacteria | Small, Medium & Large

Seeded Sponge Filter – Established Beneficial Bacteria | Small, Medium & Large

Give your freshwater aquarium biological filtration a head start with a pre-seeded aquarium sponge filter from Tropical Treasures Wyo in Cheyenne, Wyoming. Our seeded sponge filters have been kept in established aquarium systems to encourage colonization by beneficial nitrifying bacteria. Choose a small, medium, or large sponge to suit your setup.

IN-STORE PICKUP ONLY — NO SHIPPING. Seeded sponge filters are living biological media and must be collected locally. Availability depends on ready-to-sell seeded stock.

Why Choose a Seeded Sponge?

• Introduces established biological filter media that may help support the aquarium nitrogen cycle
• Provides sponge surface area for beneficial bacteria as well as mechanical debris capture
• Useful when setting up additional aquariums, replacing filter media, or supplementing an existing filtration system
• Choice of Small, Medium, or Large

What's Included

One seeded sponge only. Air pump, airline tubing, check valve, and other accessories are not included. Depending on the sponge type, a compatible filter body, lift tube or fittings may also be needed; confirm your intended setup with our staff before pickup.

Important Cycling and Transport Information

Beneficial bacteria need moisture, oxygen, and a source of ammonia to remain active. Keep the sponge wet with aquarium water during transport, avoid temperature extremes, and install it promptly into a suitable operating filtration system. Seeded media does not guarantee an instantly cycled aquarium or make it safe to add all fish immediately. Continue testing ammonia and nitrite, stock gradually, and follow responsible cycling practices. Bacterial activity varies with handling, water chemistry, and aquarium conditions.

Frequently Asked Questions

Does it come with an air pump? No, this listing is for one seeded sponge only.

Can I have it shipped? No. These are strictly for in-store pickup at Tropical Treasures Wyo.

Will my aquarium cycle immediately? Not necessarily. Seeded sponge media can help establish biological filtration, but water testing and proper cycling are still necessary.

Which size should I choose? Ask our staff to help select a size compatible with your tank and equipment. Physical dimensions and specific model may vary with available stock.