Fluval ClearMax Phosphate Remover 3.5oz
Fluval ClearMax is a science-grade resin designed to adsorb phosphate, nitrite, and nitrate. Removing these compounds produces crystal clear water, reduces odours, and creates ideal conditions for fish and plants. It also helps reduce the time spent on maintaining your aquarium.
Key Features
- Traps phosphate, nitrite, and nitrate
- Creates crystal clear water, ideal for fish and plants
- Compatible with both fresh and saltwater aquariums
- Treats 300 L (80 US gal)
- For Fluval filter models: 106, 206, 306, 406, FX5, 105, 205, 305, 405, 104, 204, 304, 404
| Parameter | Value |
|---|---|
| Capacity | 300 L (80 US gal) |
| Active Ingredients | Resin for phosphate, nitrite, nitrate adsorption |
| Application | Freshwater and saltwater aquariums |
| Compatible Filters | 106, 206, 306, 406, FX5, 105, 205, 305, 405, 104, 204, 304, 404 |
FAQ
Can this product be used in both freshwater and saltwater aquariums?
Yes, Fluval ClearMax Phosphate Remover is suitable for both freshwater and saltwater aquariums.
How much water does one bottle treat?
One 3.5oz bottle treats 300 liters (80 US gallons) of water.
Is this product safe for fish and plants?
Yes, it is safe for fish and plants as it removes harmful compounds without affecting water chemistry.

Donna Glover –
I’ve used this in my 100-gallon freshwater tank for three months. The water clarity has improved significantly. My fish are more active and the odour has reduced. Works well with my Fluval 306 filter.
Victor Hudson –
The product is easy to add and works quickly. I noticed less algae growth after using it. It fits perfectly in my 204 filter. Slight improvement in water clarity after a week.
Alexandra King –
After switching from a regular filter to this phosphate remover, my tank water became noticeably clearer. No fish stress or changes in behaviour. Works great with saltwater too.
Dominic Stewart –
Used it in a reef tank with mixed species. The nitrate levels dropped within two weeks. No issues with fish or coral. Only needed to replace every 6 months.