API Calcium Test Kit

New product

  • Test calcium for healthy reef inhabitants
  • For use in reef aquarium

More details

$ 23.00

In Stock

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More info


Calcium is a critial mineral element for healthy reef growth including reef invertebrates, such as corals, crustaceans, mollusks, and even certain type of encrusting algae.

Unfortunately, calcium level in water drops as it is absorbed by invertebrates, or as calcium reacts with excess phosphate.

The API Calcium Test Kit is able to measure calcium levels as low as 20 mg/L to help you identify conditions necessary for the healthy growth of your reef inhabitants.


2 bottle kit (2 x 37 ml), easy-to-ready instructions, and glass test tube.

API Fishcare Online Shop

N30 is the authorised dealer in Singapore for API Fishcare water test and treatment products in Singapore.

Order your API Fishcare products online today at n30.com.sg

About N30

N30 Tank Pte. Ltd. is a leading manufacturer of custom-made fish tanks cabinets. As a tank maker, we supply aquarium cabinets to homes and offices locally as well as ship orders worldwide.

N30 provides expertise in the construction of large acrylic aquariums, such as those in Underwater World (Resort World Sentosa). We supply customised storage tanks to fish farms such as Qian Hu, and to major restaurants. The N30 brand name is trusted for quality workmanship in the industry.

N30 has developed unique glass-sealing techniques, which allows us to produce very large tanks (such as 30-feet long) without issue of water leakage. For all custom-made fish tanks, N30 assures customers of Five Years Warranty against water leakage.

To support the needs of aquarium hobbyists, N30 is also offering a wide range of aquarium accessories such as filters, pumps, lighting, wave makers, skimmers... for sale online. We encourage customers to browse and shop online at n30.com.sg for accessories. It is convenient and we provide free delivery for orders (see the online store terms and conditions for details).

Loyalty Points

N30 Member Rewards

Earn 5 points per dollar

N30 members earn five points per dollar spent online at n30.com.sg. Each point is worth S$0.01 in cash value.

Convert points into eVouchers redeemable for discounts on your orders.

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When you purchase S$100 of aquarium accessories online at n30.com.sg, you will earn 500 points in your N30 account. You may convert the 500 points into an eVoucher worth S$5. To use this eVoucher on your next order, simply enter the unique eVoucher code in your shopping cart before you check out. That's all!

The more you shop on n30.com.sg, the more you will save on your next order!

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