Hel-X 13 Biomedia (25 Ltrs)
Hel-X 13 Biomedia — 25 Litres is high-performance biological filter media with 767 m²/m³ surface area. Designed for moving bed, combi drum and trickle filter systems, 25 litres can break down up to 170 g of food per day.
£46.95
In stock
Product Description
When you need serious biological capacity in a compact space, OASE Hel-X 13 Biomedia — 25 Litres (FM2301)delivers. It’s designed to hold a high concentration of beneficial bacteria within the same filter volume, making it ideal for moving beds and combi systems. 25 litres of Hel-X 13 can biologically break down 170 g of food per day!
Why it’s a good fit
- High biological capacity in a compact volume
- 25 L breaks down up to 170 g of food per day
- Often used in combination with a drum filter
- Performs excellently in trickle filters
- 13 mm format offers greater surface area per m³ than 17 mm
Technical specifications
| Feature | Detail |
|---|---|
| Product name | OASE Hel-X 13 Biomedia |
| Product code | FM2301 |
| Volume | 25 litres |
| Diameter | 13 mm |
| Pieces per m³ | 300,000 pieces/m³ |
| Surface area | 767 m²/m³ |
| Food breakdown capacity | 170 g per day (per 25 L) |
For comparison, 17 mm Hel-X provides 595 m²/m³, so the 13 mm version offers a higher surface area within the same volume.
Where it fits in your system
Best suited for:
- Moving bed biological chambers
- Combi drum filters
- Trickle or shower-style filters
In a moving bed setup, you’ll need a suitable air pump to keep the media circulating and properly oxygenated.
Installation tips
- Use in a chamber with strong aeration to create a fluidised bed.
- Avoid overfilling the chamber – leave space for free movement.
- Pair with good mechanical pre-filtration (e.g. drum or sieve) to prevent clogging.
Delivery Details
Delivery Charges
We offer two simple delivery options:
- Free shipping on all orders over £75
- Flat rate of £3.95 for lighter parcels on orders under £75
- Flat rate of £5.50 for heavier parcels on orders under £75
All deliveries are sent via Royal Mail, ensuring reliable and trackable service.
Delivery Times
Orders are usually dispatched within 1–2 working days. Once shipped, Royal Mail typically delivers within 2–4 working days. Please note that during peak times or in the event of postal delays, delivery may take slightly longer.
Delivery Locations
We currently ship to UK addresses only, including mainland UK and Northern Ireland.
Questions?
We’re here to help. If you have any questions about your delivery, email us at mskoiltd@outlook.com and our customer service team will be happy to assist.
Free delivery on orders over £75
Enjoy free standard delivery when you spend £75 or more.
Easy
Returns
Hassle-free returns if something is not quite right.
Same Day Dispatch
Orders placed before 2pm are dispatched the same day.
Dedicated Support
Friendly support whenever you need help or advice.
