Sera Nitrite-Minus
Immediate help against nitrite
- Helps immediately with acute nitrite contamination, e.g. during the start-up phase
- Immediately removes up to 1.5 mg/l nitrite per dosage
- Very well tolerated by ornamental fish, invertebrates and plants
- Up to 5-fold dosage possible
- Supports the filter bacteria by converting the pollutants
| Key Benefits | Details |
|---|---|
| Effective Nitrite Removal | Up to 1.5 mg/l per dosage |
| Safe for Aquatic Life | Well tolerated by fish, invertebrates, and plants |
| Usage Flexibility | Up to 5-fold dosage possible in emergency situations |
| Supports Biological Filter | Helps convert nitrite to nitrate, supporting bacterial activity |
FAQ
How quickly does Sera Nitrite-Minus start working?
It provides immediate relief against nitrite buildup and starts working right after addition.
Can it be used during the start-up phase of a new aquarium?
Yes, it is specifically designed to help during the start-up phase when nitrite levels rise due to insufficient filter bacteria.
Is it safe for fish and plants?
Yes, it is very well tolerated by ornamental fish, invertebrates, and aquatic plants.



Ava Chapman –
Used during the first week of setting up my aquarium. Nitrite levels dropped quickly after one dose. My fish showed no signs of stress. The product worked as promised and is easy to use.
Keith Skinner –
After a filter change, my tank had high nitrite. I used Sera Nitrite-Minus once and the levels went down within hours. No fish died or showed symptoms. Very effective and safe.
Cameron Forsyth –
It worked well in reducing nitrite, especially during the initial setup. I used it twice because of a sudden spike. My plants stayed healthy and fish were calm.