API Calcium Test Kit

API Calcium Test Kit

The API Calcium Test Kit is a calcium test kit for reef aquariums, designed to help you keep the calcium level right for corals, crustaceans and other invertebrates. It suits saltwater hobbyists who want to track one of the most important elements in a reef tank. It comes as a single kit with everything listed below.

Key Benefits

• Measures calcium in reef aquariums to help maintain the health of invertebrates such as corals and crustaceans
• Reads calcium levels as low as 20 mg/L, so a falling level can be picked up and addressed
• Helps you keep track of calcium as it is used up over time
• Comes with easy-to-read instructions

Why Calcium Matters in a Reef Tank

Reef invertebrates such as corals, crustaceans and mollusks, and even some types of encrusting algae, need calcium to grow and stay healthy. Over time the calcium level drops as invertebrates use it, or as it reacts with excess phosphate. Regular testing lets you see this happening instead of guessing.

How to Use

• Follow the instructions supplied in the kit
• For best results, test calcium in your saltwater tank weekly

Suitable For

• Reef and marine (saltwater) aquariums
• Tanks housing corals, crustaceans, mollusks and encrusting algae

Specifications

• Test parameter: calcium
• Lowest measurable level: 20 mg/L

What's Included

• 2 test bottles
• Easy-to-read instructions
• 1 glass test tube

Frequently Asked Questions

Do I need to test calcium in a freshwater aquarium?
No. Calcium needs to be monitored and maintained in reef or marine aquariums, because improper levels can be harmful to corals and crustaceans.

How often should I test my calcium level?
For best results, test your saltwater tank weekly.

What is the lowest calcium level this kit can measure?
It measures calcium levels as low as 20 mg/L.

Why does the calcium level in a reef tank drop?
Calcium is used up by invertebrates over time, and it can also fall as it reacts with excess phosphate.

Which reef inhabitants depend on calcium?
Corals, crustaceans, mollusks and even some types of encrusting algae all need calcium to grow and remain healthy.

What comes in the kit?
You get 2 test bottles, easy-to-read instructions and a glass test tube.

When can I expect delivery?

• Gauteng (Jhb/Pta) - 1-3 working days
• Nationwide (Cpt/Dbn+) - 2-5 working days
• Outlying Areas - 3-7 working days

All orders are sent via Economy Road, typically through Fastway or Internet Express Couriers*. Estimated timeframes are not guaranteed. Once the order is collected by the courier, we have no control over third-party logistics and cannot make any time promises.

If you prefer a faster 🚀 shipping option, we also offer The Courier Guy during checkout in the dropdown selection. Please note that this option is not free, and you must choose it to use it. Please pay careful attention to the cutoff times and delivery timeframe for these options during checkout.

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No more waiting at home or at work for your delivery. Simply choose a collection locker or pickup point and collect your order when it suits you.

Delivery times to lockers and pickup locations typically range from 2–7 working days, depending on your location.*

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Collection timeframes:

• Bob Box: Collect within 2 days of receiving your collection notification.
• PUDO Lockers: Collect within 36 hours of receiving your collection PIN or SMS notification.

If a PUDO parcel is not collected within 36 hours, it will automatically be transferred to the nearest PUDO Kiosk or Depot at no additional cost. The parcel will then be held there for approximately 2 days before being returned.

Please ensure you collect your parcel within the applicable collection period. Uncollected parcels will be returned to the sender, and additional shipping charges may apply should the order need to be resent.