Upettools Aquarium Biochemical Sponge Filter with Air Stone for 5-11 Gal

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 airline tubing 5m/ 10m. if you want to buy an air pump black/white)

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. Ultra-thin design
Save space inside the aquarium tank and more beautiful.
Recommend tank size: 5-13Gal. Dimension: 4.2*2.8 in.

Specification:

BT306 Size and Weight: 4.2*2.8 in / 6.54oz
Compatible air pump wattage: >1W
Recommend tank size:  5-13Gal
Outlet size: It can be compatible with airline of 4mm.

Package Included:

1 x BT-306Filter (Air pump not included)

How to remove or install the filter?

Squeeze the two buckles at the same time, press them hard toward the center of the product (toward the bubble), and then push the protective cover-up.

How to maintain is required？

1. The sponge needs to be rinsed every time it gets dirty (approximately every 2 to 4 weeks). No need to use tap water, just gently clean the sponge with aquarium water.
2. After 3 to 6 months of use, the pores of the sponge will gradually become clogged with fine debris, and the sponge filter will begin to fail.
3. Therefore, it is also recommended to replace the sponge every three to six months or when the sponge is worn out.