Oase Customizable Cartridge for BioStyle Filter
The Customizable Cartridge is compatible with the BioStyle 20, 30, and 50 models, as well as the BioStyle Thermo 30 and 50 models.
Users can add up to 120 mL of dry filter media to customize the filtration system based on their aquarium’s specific needs. Filter media is sold separately.
The inner capacity of the cartridge is 120 mL with dimensions of 0.57 x 2.3 x 5.8 inches.
| Specification | Details |
|---|---|
| Compatible Filters | BioStyle 20, 30, 50 and BioStyle Thermo 30, 50 |
| Max Media Volume | 120 mL |
| Dimensions | 0.57 x 2.3 x 5.8 inches |
| Replaces | 30 ppi filter foam in the filter chamber |
| Quantity per Unit | Depends on filter size |
Includes one empty cartridge designed to fit directly into the filter chamber.
FAQ
Can I use this cartridge with all BioStyle models?
Yes, it is compatible with the BioStyle 20, 30, 50, and BioStyle Thermo 30 and 50 models.
How much dry media can I add to the cartridge?
You can add up to 120 mL of dry filter media to the cartridge.
Does the cartridge come with filter media?
No, the cartridge is empty and comes with no filter media. Filter media must be purchased separately.

Gabrielle Peake –
I replaced the foam in my BioStyle 30 with this customizable cartridge and added ceramic rings and activated carbon. The water clarity improved noticeably after a week. Easy to install and fits perfectly in the chamber.
Melanie McLean –
Works well with my aquarium setup. I used it to add sponge and bio-balls. The filter performs better than the original foam. Slightly more maintenance since I need to check the media regularly.
Julia Kelly –
Great flexibility for customizing filtration. I added a mix of zeolite and coconut coir. My tank has fewer algae issues now. The cartridge fits securely and doesn’t shift during operation.