The role of nitrates in reef aquariums
Nitrates ( NO3- ) are an essential source of nitrogen for the biological functioning of a marine aquarium. They play a role in bacterial metabolism and contribute to the balance between available nutrients and biological export.
In modern , highly purified reef systems (efficient skimming, refugiums, phosphate-removing resins, advanced filtration), nitrate levels can become too low. Consistent maintenance of NO3- levels helps preserve a stable nutrient balance , particularly in tanks with high coral density.
We offer a full range of products to target the main elements of seawater following ICP analysis or manual testing.
A simple, direct and controlled formulation
The Zoanthus Lab – Nitrate solution is prepared from pharmaceutical grade calcium dinitrate tetrahydrate (Ca( NO3 ) 2 · 4H2O ) , dissolved in purified water (RO/DI).
This highly soluble inorganic salt guarantees perfect concentration stability and reliable analytical readings. No dyes, stabilizers, or additives are added to ensure precise and measurable correction.
- ✔ Stable inorganic solution
- ✔ Pharmaceutical grade raw material
- ✔ Compatible with modern reef methods
- ✔ Consistent and reproducible ICP results
Concentration and dosage
The solution is formulated according to a precise protocol:
- Concentration: 100 mg/mL of nitrates (NO 3 - )
- Recommended dosage: 1 mL per 100 L of water
- Effect: +2 mg/ L of NO3-
- Gradual correction: adjust according to reliable ICP results and tests
Supplementation should be carefully considered and gradual to avoid any sudden changes in the environment. A phased approach helps maintain the biological stability of the tank. Regular monitoring via ICP analysis remains the most reliable method for maintaining consistent values over the long term.
Zoa Aqua Manager: your smart dosing assistant
Each Zoanthus Lab product can be controlled via our free Zoa Aqua Manager calculator. In just a few seconds, you get a precise and personalized dosage from your ICP analysis (Zoanthus Labs or any other laboratory).
No more manual calculations: enter your water volume, your measured value and your objective, and the system automatically calculates the appropriate correction, with the possibility of progressive dosing for optimal stability.
A tool designed by aquarists, for demanding aquarists.
Three ICP analyses tailored to each need
ICP REEF
The essentials for reef aquariums
Complete analysis of the major elements and trace elements essential for the regular monitoring of your reef aquarium.
- Key parameter tracking
- Detection of deviations
- Over 40 parameters analyzed
ICP MAX
Ultra-comprehensive diagnosis
In-depth reading with expanded spectrum including fluoride, nitrates, KH and reverse osmosis water analysis.
- Most detailed analysis
- Over 45 parameters analyzed + reverse osmosis water
- For discerning aquarists
ICP PURA
Special reverse osmosis water
Precise control of your preparation water to ensure a perfectly healthy base before any remineralization.
- RO/DI water verification
- Contaminant detection
- Secure the preparation
Usage and storage instructions
Add to a well-circulated area of the aquarium or to the sump. Shake well before use.
Store away from light, between 15 and 25 °C. Recommended shelf life: 12 months after manufacture.
- Product intended exclusively for use in aquariums!
- Keep out of reach of children! Do not swallow! Do not ingest.
- Not suitable for animal feed.
- In case of contact with skin or eyes, rinse thoroughly with water.
Proper nitrate management is essential: an excess can lead to biological imbalances. Regular monitoring helps maintain a stable aquarium in the long term.
