Juwel Nitrax Nitrate Removal Sponge 8.0 for Aquarium
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JUWEL Nitrax is a biological filter medium designed to break down nitrates in your aquarium. It reduces algae growth and supports the vitality of your plants and fish.
Nitrax reduces nitrate levels in your aquarium, helping to minimize algae growth. It contains specialist microorganisms that break down toxic metabolites such as ammonium and nitrite, reducing the risk of fish mortality. The sponge also anaerobically breaks down nitrates, which helps maintain a healthier aquatic environment.
Product Features
- Promotes plant growth
- Reduces algae growth
- Breaks down toxic ammonium and nitrite
- Supports fish vitality
| Dimensions | 15x15x5 cm |
|---|---|
| Material | Biological filter sponge |
| Usage | Aquarium biological filtration |
FAQ
How does Nitrax reduce nitrate levels in the aquarium?
Nitrax contains specialized microorganisms that anaerobically break down nitrates, reducing their concentration in the water and helping to control algae growth.
Can Nitrax be used in both freshwater and saltwater aquariums?
Please contact customer service
Is the sponge reusable or does it need to be replaced regularly?
The sponge is designed for long-term use but should be cleaned periodically and replaced every 6 to 12 months depending on tank conditions.


Carol Paige –
I’ve used Nitrax for three months now and noticed a significant drop in algae on my planted tank. My fish seem more active and the water clarity has improved. Easy to install and maintain.
Richard Dickens –
The sponge fits well in my 150-liter tank. Algae growth has decreased noticeably after a week of use. I didn’t see any fish stress or changes in behavior.
Chloe Glover –
Great product for reducing nitrates. The microorganisms work well over time. I’ve seen my aquatic plants grow stronger and the tank looks cleaner overall.
Boris Rees –
It works, but I had to clean it every few weeks. The initial setup took some time to establish the microbial balance. Still, it helps with algae control.