Colombo Flora Nitro 250 ml
Special Nitrate Fertilizer for Aquarium Plants — Dose Precisely with the Flora Nitro Test
Colombo Flora Nitro 250 ml — Targeted Nitrate Fertilization Based on Measurement
✅ Level: Easy — Dose based on test results. No special equipment needed.
Nitrate (NO₃) is an essential macronutrient for aquarium plants — a deficiency leads to reduced growth and yellowing of older leaves. In heavily planted aquariums with CO₂ injection, nitrate can quickly deplete. Colombo Flora Nitro provides targeted nitrate fertilization based on the measured nitrate value. Measure the nitrate level with the Colombo Flora Nitro test and add Flora Nitro as needed.
🌿 Product Specifications
| Type | Liquid nitrate fertilizer |
| Content | 250 ml |
| Usage | Dose based on Flora Nitro test result |
| Effect | Prevents nitrate deficiency in heavily planted aquariums |
| Brand | Colombo |
🚚 Delivery & Warranty
- Fast delivery from our store — ready to use immediately
- Shipping Tuesday or Friday → Read more about shipping
- Delivery with track & trace, usually within 1–2 working days
- Problem with your order? We will solve it together. Contact our customer service.
- Free shipping from €59,-
✂️ Usage Tips
Measure the nitrate level with the Colombo Flora Nitro test before and after dosing. The ideal nitrate value for heavily planted aquariums is between 5–20 mg/l. Add Flora Nitro in an area with good water flow. Combine with Colombo Flora Phospho and Flora Ferro for complete macro and micro nutrition in scape aquariums.
💡 Tip
Flora Nitro is particularly useful in heavily planted scape aquariums with CO₂ injection and high light intensity — with a high plant load, nitrates deplete quickly, and supplementary fertilization may be necessary.
❓ Frequently Asked Questions
Isn't nitrate harmful to fish?
In low concentrations, nitrate is harmless to most fish. In a heavily planted aquarium, plants consume nitrate quickly — keeping the value low. Always dose based on the test.
When do I need Flora Nitro?
In heavily planted aquariums with CO₂ injection and high light intensity, plants can consume nitrate quickly. The Flora Nitro test indicates when supplementary fertilization is needed.
Can I combine Flora Nitro with other Colombo plant fertilizers?
Yes — Flora Nitro is specifically developed as an addition to the Colombo Flora line alongside Flora Phospho and Flora Ferro.
Do you have another question? Feel free to contact us — we are happy to help you make the right choice for your aquarium.
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