Aquarium Filter for Freshwater and Saltwater Aquariums Precise Reliable and Easy to Install
★★★★★4.95,185 ratings|6K+ sold
$14.99 USD
Quantity
This Aquarium Fish Tank Biochemical Cotton Sponge is ideal for fish tanks in aquariums! It's made of high-quality cotton and is extremely absorbent, so it's ideal for removing excess water and debris from your tank. It is also harmless to fish and other aquatic animals.
Features:
Aquarium sponge filter
Green color
With airlift system
For a more quiet filtration operation
Add oxygen to the water
More About The Product
Performance: Our aquarium cleaning tool uses no electricity, has a large output, and extended service life while operating quietly and efficiently.
Easy Usage: This little purifier may be linked to the included air stone, which produces bubbles, to provide added appeal and air to your beautiful fish and aquarium.
Multi-Functional:This cleaner is used with aquarium air-driven add-ons including air stones, decorations, and tiny sponge filters. The rising air bubbles may also be used to stir the water and add oxygen so that the fish and other creatures in your aquarium can breathe and stay in clean water.
Frequently Asked Questions
This aquarium sponge provides both mechanical and biological filtration. Mechanically, it traps solid particles, uneaten food, and debris. Biologically, it hosts beneficial bacteria colonies in its dense foam matrix that break down ammonia and nitrites through the nitrogen cycle.
The sponge is available in blue and green. Both colors are functionally identical — the color distinction simply makes it easier to differentiate multiple filters in a tank or identify the model visually. Green is often used in planted tank setups where it blends with vegetation more naturally.
Yes, this sponge includes an airlift system. An air pump drives bubbles up through the center tube, creating water flow that draws water through the surrounding sponge. This gentle, low-flow filtration is ideal for fry tanks, shrimp tanks, and breeding setups where strong current would harm delicate inhabitants.
Yes, the airlift system actively adds oxygen to the water as part of its operation. The rising bubbles increase surface agitation and gas exchange, raising dissolved oxygen levels. This dual benefit — filtration plus oxygenation — makes sponge filters an extremely cost-effective choice for small aquariums.
Yes, the high-quality cotton sponge material is non-toxic and harmless to fish, shrimp, snails, and other aquatic life. The airlift gentle flow also makes it one of the safest filter types for small or fragile inhabitants that could be harmed by stronger powerhead-driven filters.
Squeeze and rinse the sponge in a bucket of old tank water (removed during a water change) — never in tap water. Chlorine in tap water will kill the beneficial bacterial colony that is the sponge's primary biological filtration mechanism. Rinse just enough to restore flow without over-cleaning the bacteria.
