Oase Activated Carbon Cartridge for BioStyle Filter
The Activated Carbon Cartridge is compatible with the BioStyle 20, 30, and 50 models, as well as the BioStyle Thermo 30 and 50 filters.
Carbon filtration helps remove toxins and odors, improving water clarity in your aquarium.
Optimize your BioStyle filter performance by replacing the 30ppi filter foam with this cartridge based on your tank’s specific needs.
Activated carbon helps eliminate cloudy water, harmful metals, odors, tannins, and other discolorations to deliver clear and pure aquarium water.
The carbon is processed to have small, low-volume pores, which increase the surface area available for absorbing unwanted substances.
| Specification | Detail |
|---|---|
| Carbon Quantity | 50g |
| Compatible Filters | BioStyle 20, 30, 50; BioStyle Thermo 30, 50 |
| Replacement For | 30ppi filter foam |
FAQ
How does the activated carbon improve water clarity?
The activated carbon removes toxins, odors, tannins, and harmful metals, which can cause cloudy water and discoloration, resulting in clearer aquarium water.
Can this cartridge be used in all BioStyle models?
Yes, it is compatible with the BioStyle 20, 30, 50, and the BioStyle Thermo 30 and 50 models.
What is the amount of activated carbon in the cartridge?
The cartridge contains 50g of activated carbon.

Thomas Rutherford –
I replaced the foam in my BioStyle 30 with this carbon cartridge. The water has become much clearer within a week. No more fishy odors or cloudiness. Works well with my planted tank.
Theresa Sutherland –
The installation was easy and fits perfectly in the filter chamber. I noticed a reduction in tannin color from my live plants. It’s a simple upgrade that makes a noticeable difference.
Alexander Nolan –
After using this cartridge for two months, my tank water looks noticeably cleaner. The smell has disappeared, and the filter runs smoothly without clogging.