Colombo Flora Ferro 250 ml
Special iron fertilizer for aquarium plants — dose precisely with the Flora Ferro test
Colombo Flora Ferro 250 ml — targeted iron fertilization based on measurement
✅ Level: Easy — Dose based on test result. No special equipment needed.
Iron is an essential trace element for aquarium plants — a deficiency leads to yellowing of leaves (chlorosis) and reduced growth. Colombo Flora Ferro provides targeted iron fertilization based on the measured iron value in the aquarium. Measure the iron content with the Colombo Flora Ferro test and add Flora Ferro as needed for optimal plant growth.
🌿 Product specifications
| Type | Liquid iron fertilizer |
| Content | 250 ml |
| Use | Dose based on Flora Ferro test result |
| Effect | Prevents iron deficiency and chlorosis |
| 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 us via our customer service.
- Free shipping from €59,-
✂️ Usage tips
Measure the iron content with the Colombo Flora Ferro test before and after dosing. The ideal iron value for aquarium plants is between 0.05–0.1 mg/l. Add Flora Ferro in an area with good water flow for optimal distribution. Combine with Colombo Flora Grow for complete plant nutrition.
💡 Tip
Yellowing of leaves is a clear sign of iron deficiency — start immediately with Flora Ferro and monitor recovery with the Flora Ferro test.
❓ Frequently asked questions
How do I know how much Flora Ferro to dose?
Measure the iron content with the Colombo Flora Ferro test and dose based on the test result. This prevents over- or underdosing.
Does Flora Ferro stimulate algae growth?
When dosed correctly based on the test, no — iron is a plant nutrient and at the correct concentration stimulates plant growth without promoting algae growth.
Can I combine Flora Ferro with other Colombo plant fertilizers?
Yes — Flora Ferro has been specially developed as a supplement to the Colombo Flora line. Combine with Flora Grow or Flora Grow Pro for complete plant nutrition.
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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