Cascade Pro Bio Rings by Penn Plax
The Cascade Pro Bio Rings are a reliable biological filtration solution designed to enhance the performance of any canister filter. These rings provide a large surface area for beneficial bacteria to colonize, supporting efficient waste breakdown in aquarium systems.
Each set comes in a durable nylon bag, making it easy to store and install. Simply place the bio rings into any media chamber of your canister filter for optimal biological filtration.
| Feature | Detail |
|---|---|
| Material | Nylon |
| Form | Ring-shaped bio media |
| Usage | Insert into media chamber of canister filter |
| Capacity | 100 rings per pack |
FAQ
How do Cascade Pro Bio Rings work in an aquarium filter?
The bio rings provide a large surface area for beneficial bacteria to grow, which helps break down harmful ammonia and nitrites in the water, supporting a healthy aquatic environment.
Can I use these bio rings in any type of canister filter?
Yes, the Cascade Pro Bio Rings are compatible with any canister filter that has a media chamber where they can be placed.
Are the bio rings reusable?
Please contact customer service

Stephen Parsons –
These bio rings fit perfectly in my canister filter and have improved water clarity in my tank. The nylon bag keeps them organized and easy to handle. I’ve used them for three months now and still see good results.
Max Rampling –
Easy to install and stable in the filter chamber. My fish seem more active and the water parameters have stabilized since adding these rings. A simple but effective upgrade.
Steven Lyman –
Great product for biological filtration. The rings hold up well and the bacteria colonization is visible within a week. I recommend them to anyone upgrading their filter system.