Oase BioCompact 25 Filter
Compact – Designed to be discreetly installed horizontally or vertically, this filter is perfect for small freshwater aquariums and paludariums.
Large filter surface for effective water filtration – Uses biological, mechanical, and chemical filtration for optimal water quality and clarity.
Carbon filter foam – Activated carbon absorbs unwanted substances in aquarium water. Carbon filter foam makes replacement much simpler than using common granular carbon.
Quiet operation – Sound dampening design.
What’s in the Box – Aquarium Filter, filter media, diffuser, suction cups, and power cable.
Suitable for use in aquariums up to 10 gallons.
Made in Italy, backed by German engineering.
Freshwater compatible.
| Specification | Detail |
|---|---|
| Filter Type | Biochemical mechanical |
| Water Capacity | Up to 10 gallons |
| Installation | Horizontal or vertical |
| Filter Media | Carbon filter foam |
| Operation | Quiet, sound-dampened |
| Origin | Italy (German engineering) |
FAQ
Can the Oase BioCompact 25 Filter be used in a paludarium?
Yes, the filter is suitable for small freshwater aquariums and paludariums.
How often should the carbon filter foam be replaced?
Please contact customer service for replacement frequency guidance.
Is the filter compatible with saltwater tanks?
No, this filter is designed for freshwater use only.

Felicity Black –
The filter fits well in my 8-gallon tank and keeps the water clear. It’s quiet and easy to install. The carbon foam is simple to replace and works well for removing odors and impurities.
Alan Russell –
I installed it vertically and it looks discreet. Water flow is steady and the tank stays clean. A bit of maintenance is needed on the filter media, but overall it’s reliable.
Victoria Bower –
Great for a small setup. The quiet operation is a big plus. I didn’t notice any noise even during night hours. The filter media lasts longer than expected.
Joe MacLeod –
Works as expected for a small tank. The suction cups hold well, but the filter needs to be cleaned every few weeks to maintain efficiency.