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Upettools Aquarium Biochemical Sponge Filter with Air Stone BT-302

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Upettools Aquarium Biochemical Sponge Filter with Air Stone for 2-6 Gal

SKU : BT-302

Stock QTY : 995

Availability: In stock

Regular Price: $10.99

Special Price $8.99

1. Ultra-thin design, save space
2. Double filtration and supply of oxygen
3. Inside equipped with a sponge filter, bio balls, air stone
4. Keep your fish tank clear and clean
5. Easy to set up
6. Can be disassembled and installed to clean

    Tier Price
    QTY Price Save
    5 $7.99 12%
    10 $7.49 17%
    30 $7.29 19%


Aquarium Biochemical Sponge Filter

Key Features:

1. Multi-filtration Functions
Providing both mechanical and biological filtration, and supplying the water with much-needed oxygen, reduces noise from the air pump and keeps water cycled and clear.

2. Equipped with a small air stone
This aquarium air bubble supplies the water with much-needed oxygen quietly. Refining bubbles will be scenery for your aquarium as well.

3. Easy to set up and disassemble
Simply install an airline into the biochemical sponge filter and turn on the air pump, which can be disassembled to clean the sponge and bio ball regularly.

4. Wide Application
Safe for fish, suitable for shrimp tank, betta tank, breeder tank, goldfish, discus, guppies, fry, baby fish, or other fish.

5. Innovative ultra-thin design
Save space inside the aquarium tank and be beautiful. Recommend tank size: 3-7 gallon, dimension: 2.8 * 3.2 in.

Aquarium sponge filterAquarium sponge filterAquarium sponge filter


BT-302 Size and Weight: 2.8 * 3.2 in / 4.23oz
Compatible air pump wattage: >1W
Recommend tank size: 3-7 Gal
Outlet size: It can be compatible with airline of 4mm.

Package included:

1 x BT-302 Filter (Air pump not included)

Aquarium sponge filter

How to disassemble?

Press the two buckles at the same time, press firmly toward the center of the product (in the direction of the air bubble), and then push the Protective cap upward.

Aquarium sponge filter toolless disassembly

How does this Ultra-Thin round filter work?

This quiet aquarium biochemical sponge filter must be used with an air pump to achieve filtration and oxygen supply.

The white filter pad provides mechanical filtration.

The bio balls provide biochemical filtration.

The air stone is great to add oxygen to your hydroponics growing system, increase oxygen levels, lower CO2, and raise PH.

(if you want to buy an air pump, please click mini air pump black/white)

Customer Reviews

Love it Review by Paul white
Filters and cleared the water。 (Posted on 2/24/2022)
Working Out Well. . . Review by Angela D.
I added this filter to a 3g round glass bowl for one of my bettas. It is working out very well. I like it’s low profile, which allows my betta extra room to swim around. It is paired with the little Upettools silent ultra silent air pump. The bubbles are breaking the surface perfectly and my betta is not bothered by it at all. I am someone who does partial water changes a couple of times through the week. However, once a week, during one of my partial changes, I also remove the sponge from the filter and rinse it with the bowl water and pop it back in its filter case. So far so good. Thank you. (Posted on 12/22/2021)

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