Nitrite (NO_2-) is often called the "silent killer" in the aquarium hobby. Whether you are cycling a new tank or experiencing a sudden bio-load spike, elevated nitrite levels can lead to organ failure, respiratory distress, and "environmental shock."
Biozym NO_2- Remover is a laboratory-grade biological treatment designed to rapidly neutralize toxic nitrites. Utilizing advanced microbial technology, these capsules convert harmful nitrite into harmless nitrogen gas that is released into the atmosphere, restoring ecological balance in as little as 2 to 3 days.
If your nitrite levels are high, your livestock may experience:
Respiratory Distress: Nitrite prevents fish from absorbing oxygen, leading to "suffocation" even in well-oxygenated water.
Digestive Issues: Causes reduced food intake, empty guts, and "white feces" disease.
Organ Failure: Long-term exposure leads to hepatopancreatic necrosis and liver disease.
Shrimp Vulnerability: For ornamental shrimp, it causes osmotic pressure imbalance, resulting in soft shells after molting and slow growth.
Rapid Biological Neutralization: Special strains of bacteria target NO_2- and transform it into a nutrient source for microorganisms.
Denitrification Power: Converts excess nitrite into nitrogen gas (N_2), effectively removing it from the water column.
Safe & Elegant Design: Each bottle contains 50 individually packaged tablets, ensuring the bacteria remain active and the dosage is precise every time.
Clarity & Health: Improves water transparency while boosting the natural immunity and appetite of high-value fish like Koi, Arowana, and Stingrays.
Biozym capsules are designed to be added directly to your filter or an area of high water flow.
| Application Type | Recommended Dosage |
| Nitrite Spike / Emergency | 1 Tablet per 50 Liters of water |
| Standard Maintenance | 1 Tablet per 100 Liters (Once or twice weekly) |
| New Tank Setup | 1 Tablet per 50 Liters (Initial dose) |
IMPORTANT!
Pro Tip: While Biozym is highly effective at reducing toxic levels, it is not a replacement for regular maintenance. Continue your routine water changes to ensure long-term stability and nutrient export.
Q: How fast does it work?
A: Most users see a significant reduction in nitrite levels within 48 to 72 hours. For heavy spikes, ensure you have adequate aeration in the tank, as the biological process consumes oxygen.
Q: Is it safe for marine (saltwater) tanks and shrimp?
A: Yes. This product is specifically formulated to be safe for freshwater, marine, and delicate shrimp systems. It is particularly beneficial for shrimp keepers who struggle with molting issues related to water chemistry.
Q: Can I overdose the tank?
A: Biozym is a biological product, so it has a high safety margin. However, we recommend following the instructions closely. If you have extremely high nitrites, it is better to perform a small water change first and then dose Biozym to handle the remaining levels.
Q: Will this affect my beneficial bacteria in the filter?
A: No. It actually supports your bio-filter by providing specialized microbes that work alongside your existing nitrifying bacteria to complete the nitrogen cycle.
To ensure your aquarium stays balanced and your livestock recovers quickly from a nitrite spike, I recommend pairing the Biozym NO_2- Remover with these essential biological and monitoring tools:
Why it pairs well: Ammonia is the precursor to Nitrite. By using the Ammonia Remover alongside the Nitrite Remover, you stop the toxic cycle at the very beginning, preventing further NO_2^- from forming.
Biozym N1 Nitrifying Bacteria – High-Concentrate
Why it pairs well: While the NO_2- Remover handles the immediate crisis, N1 builds the long-term biological "safety net." Adding live bacteria helps repopulate your filter media so that future waste is processed naturally before it becomes toxic.
Biozym 303 High Activating Probiotics
Why it pairs well: After a nitrite spike, water quality often suffers. Biozym 303 helps clear cloudy water and provides an "energy boost" to the tank's existing beneficial microbes, speeding up the recovery of the ecosystem.
Salifert Nitrite/Nitrate Test Kit
Why it pairs well: You cannot manage what you cannot measure. During a nitrite crisis, you should test your water twice daily. This professional-grade kit provides the high sensitivity needed to see exactly when your levels have returned to the safe level.
Tropic Marin® IMMUVIT Immune Stimulant
Why it pairs well: Nitrite causes "environmental shock" and physical damage to fish gills. IMMUVIT helps fish rebuild their natural slime coat and internal defenses, preventing secondary infections like white spot or fin rot that often follow a water quality crisis.
For a tank currently in crisis, we suggest the Biozym Triple-Threat: Use NH3/NH4+ Remover (to stop the source), NO2- Remover (to stop the suffocation), and N1 Liquid (to fix the filter). This combination offers the highest success rate for saving fish during an accidental "cycle crash."
