26% off
ClearFlow BioRing Sintered Glass Filter Media 1 L
High-porosity sintered glass rings with around 1 400 m² of surface per litre for nitrifying bacteria.
About this item
- Around 1 400 m² of surface area per litre
- Sintered glass does not break down or leach
- Open pores resist clogging
- Reusable mesh media bag included
- Fits canisters, HOB filters and sumps
Key specifications
- Volume
- 1 L (approx. 700 g)
- Material
- Sintered glass
- Surface area
- ≈ 1 400 m² per litre
- Ring size
- 15 × 15 mm
- Treats
- Up to 400 L per litre of media
Product description
BioRing is the biological media ClearFlow ships inside its own canisters, sold here by the litre for any filter. Each 15 mm ring is sintered glass with an open pore structure that colonises quickly and does not clog like ceramic noodles.
One litre is enough for roughly 400 litres of aquarium water in a canister or sump. Rinse in tank water before first use and never replace the whole batch at once.
In the box: 1 L of BioRing (around 700 g) in a reusable mesh media bag.
Specifications
| Volume | 1 L (approx. 700 g) |
|---|---|
| Material | Sintered glass |
| Surface area | ≈ 1 400 m² per litre |
| Ring size | 15 × 15 mm |
| Treats | Up to 400 L per litre of media |
| Before use | Rinse in tank water |
| Lifespan | 3–5 years |
|---|---|
| Includes | Mesh media bag |
| Brand | ClearFlow · Italy (imported) |
| Country of origin | Italy |
| GST | 18% included in price |
Customer reviews
4 reviews · 3.3 out of 5
3.3
4 reviews
4 reviews
- OmarVerified purchase
Solid, minor quibbles
Does the job well. The instructions could be clearer and the packaging was a bit oversized, but the product itself is reliable.
- Noah
Good upgrade
Noticeable improvement over what I had before. Only reason it is not five stars is that I wish there were more colour options.
- ClaraVerified purchase
Okay for the price
It works, but it feels a little less premium than the photos suggest. Fine as a budget option.
- LucaVerified purchase
Not for me
Arrived fine but it did not suit my setup as well as I hoped. Returns were handled quickly, which I appreciated.
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