Why customers love it
This 2-pack of biochemical sponge filters delivers natural biological filtration for your aquarium, helping keep water crystal clear and your fish thriving.
The high-density biochemical sponge encourages beneficial bacteria growth, helping break down waste and keep your aquarium water stable and healthy.
This sponge increases oxygen solubility in the water, supporting fish health and vitality with every filter cycle.
Designed to work quietly, it keeps your aquarium environment peaceful without adding distracting noise.
Excellent water permeability means efficient filtration, and the sponge rinses clean quickly for simple maintenance.
Setup
No electrician, no wiring, no fuss.
Take out the existing filter sponge from your waterfall or air-driven aquarium filter.
Submerge the new biochemical sponge in aquarium water for a few minutes before use.
Place the soaked sponge into the filter compartment and let it start working silently to keep your water clear.
Specs
Built to last outdoors, season after season.
Comparison
Not all products in this category are built the same.
If your order arrives damaged, defective, or not as described, contact us within 14 days and we will make it right with a replacement or refund.
Everything you might want to know before you order.
Each sponge measures 7.5 x 4 x 3.5 cm, making it compact enough to fit most standard filter compartments.
The sponge is made of high-density biochemical sponge, which promotes beneficial bacteria growth for natural biological filtration.
Simply replace the old sponge and soak the new one in aquarium water for a few minutes before use. It works as replacement media for waterfall and air-driven aquarium filters.
This pack includes 2 pieces of biochemical sponge filter media.
The sponge has excellent water permeability, so it rinses easily. Just rinse it in aquarium water during routine maintenance to keep it working efficiently.
Yes, it increases oxygen solubility in the water and supports beneficial bacteria growth, both of which contribute to fish health and vitality.
You can request a return within 14 days after delivery. Standard returns have a €4.00 EUR (approximately $4.66 USD) flat-rate return shipping fee, deducted from your refund. Return shipping is free for items that arrived damaged, defective, or incorrect. Items should be unused and in original packaging where possible. Contact us before sending anything back.
We found the HJ-611B filter. 8cm x 4.5cm. Delivery was on time as stated.
It seems to have a good mesh, the size is great. I liked the product.
