Colombo Flora Ferro Test Iron

Name: Colombo Flora Ferro Test Iron
Brand: Colombo
SKU: COL-A5010510
Price: 11.09 USD
Availability: InStock
Rating: 5.0 (4 reviews)

Colombo Flora Ferro Test Iron - Main image

$11.09 ~~$14.99~~ In stock

Category: Aquarium Water Test

Professional drop test with adapted measuring range for precise determination of iron value for fertilisation of aquarium plants. The handy visualised instructions, included test tubes and accessories make testing easy. Test range Iron 0.05 – 0.75 mg/l

Colombo NPF System

Testing

Use the 3 test kits developed by Colombo to measure Nitrate (Nitro), Phosphorus (Phospho) and Iron (Ferro) levels in aquarium water.

Nutrients

Then add the exact amount of Colombo Nitro, Phospho and Ferro nutrition using the handy dosing pump on the bottle.

Confirm the order

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Before work begins

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Express Shipping: Handling (business days) 0–1; Transit (business days) 7–15.

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Standard Shipping · United States: $0.00

Express Shipping · United States: $3.99

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United States · Return window (days after delivery): 30. Return method: By mail. Return postage: Seller pays.

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Customer Reviews (5.0 / 5 · 4 reviews)

Zoe ★★★★★ Oct 21, 2026

The color chart makes it really easy to read the results, and the included test tubes fit perfectly in my small cabinet. Finally getting precise iron readings has helped me adjust my dosing routine without guessing.

Natalie ★★★★★ Oct 20, 2026

I was a little worried about overdosing iron supplement, but the color chart in this drop test is super easy to read. The included test tubes and printed guide made my first check take under five minutes.

Timothy ★★★★★ Oct 19, 2026

Finally a test that gives me clear iron readings in the range I actually need for my high-tech planted setup. The visual instructions on the bottle made the whole drop test process a breeze, and the included test tubes are a nice bonus.