Pro Shrimp

API Calcium Test Kit

API Calcium Test Kit - Main image
$6.02 $8.99 In stock

Category: Aquarium Water Test

API Calcium Liquid Water Test Kit

Calcium is one of the most important elements in a reef aquarium. Reef invertebrates such as corals, crustaceans, molluscs and even some types of encrusting algae need calcium to grow and remain healthy. Over time, calcium levels drop as invertebrates use calcium in aquarium water.

This kit allows you to easily and accurately measure calcium levels and maintain a healthy reef aquarium. Measures calcium levels as low as 20mg/L.

Uses titration method, with easy to see colour change for precise measurement.

For use in reef aquariums.

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Customer Reviews (4.3 / 5 · 4 reviews)

James ★★★★★

My reef tank has been struggling with low calcium for weeks, and this liquid test kit finally gave me a clear reading instead of guessing. The color change is easy to see, and I’ve been dosing more confidently since I got it.

Emma S. ★★★★★

My reef tank's corals were looking pale and I couldn't figure out why until I tested calcium with this kit—the color change is super obvious and easy to read. The instructions are clear enough that even a beginner like me got a reliable reading in about five minutes. It's honestly a relief to finall

Joseph ★★★★☆

The dropper bottle makes counting out the exact number of drops for my test pretty straightforward, even when my hands are wet from tank maintenance. It does take a few minutes to get the color match right under my LED lights, but the readings have been consistent with what my LFS gets.