FLUVAL C4 HANG ON FILTER 265L
The FLUVAL C4 Hang-on Filter is a reliable and efficient aquarium filtration system designed for medium to large freshwater tanks. It provides powerful mechanical, biological, and chemical filtration to maintain clean and healthy water conditions.
With a 265L (approximately 70 gallons) filtration capacity, this filter is ideal for tanks ranging from 100 to 200 liters. The filter features a high-performance filter media system that includes a sponge, ceramic rings, and activated carbon to remove debris, harmful bacteria, and impurities.
Key Features
- Hang-on design for easy installation and maintenance
- 3-stage filtration: mechanical, biological, and chemical
- Adjustable flow rate with 3 speed settings
- Includes 1000mm filter cartridge and 100mm siphon tube
- Designed for tanks up to 200L (53 gallons)
| Specification | Value |
|---|---|
| Filtration Capacity | 265L (70 gallons) |
| Filter Type | Hang-on |
| Flow Rate | 3 speed settings |
| Filter Media | Sponge, ceramic rings, activated carbon |
| Compatible Tank Size | 100L to 200L |
FAQ
What is the maximum tank size compatible with the FLUVAL C4 HANG ON FILTER 265L?
The FLUVAL C4 Hang-on Filter is compatible with tanks up to 200L (53 gallons).
Can the filter be used in a saltwater aquarium?
No, this filter is designed for freshwater aquariums only.
How often should the filter media be cleaned or replaced?
The sponge and ceramic rings should be cleaned every 2 to 4 weeks. Activated carbon should be replaced every 4 to 6 weeks or when it starts to lose effectiveness.

Jonathan Brown –
The filter works very well in my 150L tank. Water clarity has improved significantly since I installed it. The flow is adjustable and the maintenance is simple. I clean the sponge every two weeks and it stays effective.
Liam White –
Good filtration performance. The filter runs quietly and keeps the water clean. I noticed a slight drop in flow after a few weeks, but adjusting the speed helped. It’s a solid choice for a medium-sized tank.
Oliver Stewart –
Installed it in my 200L tank and it handles the fish population well. The three-speed setting is useful for different tank conditions. The filter media lasts longer than expected and I haven’t had to replace it yet.
Nicholas Hudson –
Works reliably and keeps the water clean. The only downside is the initial setup took some time. After that, it’s easy to maintain and performs consistently.