HICORAL

Marine Coral Care Kit

$194.99

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Perfect for testing saltwater aquariums, reef tanks, and other marine and aquaculture applications.

Easily monitor calcium, alkalinity, and magnesium to create a healthy environment that fosters strong coral growth and development. This kit comes complete with everything you need. Watch your bold, vibrant corals thrive. Stop guessing with color charts. Get fast, accurate digital readouts in the palm of your hand with these Checkers®HC.

Easy-to-read, instant digital results
Compact and portable
Simple one-button designs and straightforward steps

Begin testing aquariums instantly to support beautiful, colorful corals

Calcium, alkalinity, and magnesium play a significant role in promoting coral growth, and proper management of these parameters is critical. Reef tank owners must control calcium levels to promote stable coral tissue and skeletal structures, alkalinity must be kept in check to ensure stable coral calcification and growth, and lastly, magnesium must be maintained to foster good polyp extension and coral coloration. Be ready for regular aquarium water checks and test confidently with our Marine Coral Care kit.

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Features

What's included

Specifications

Warranty

Testing tips

Saltwater compatible
Checkers®HC are dedicated to a single parameter
A great alternative to chemical test kits
Digital readouts appear on large LCD screens
Pocket-sized, lightweight
Easy-to-use, convenient
Requires little maintenance
Comes as a complete coral care kit
Be ready to test right out of the box with all necessary reagents, accessories, and batteries
Auto shut-off conserves battery energy
Calcium range: 200 to 600 ppm (as Ca²⁺)
Alkalinity range: 0.0 to 20.0 dKH
Magnesium range: 1000 to 1800 ppm Magnesium

Marine Calcium Checker (HI758) supplied with protective case

Marine Calcium reagent starter kit for 25 tests

Marine Alkalinity Checker (HI772) supplied with protective case

Marine Alkalinity reagent starter kit for 25 tests

Marine Magnesium Checker (HI783) supplied with protective case

Marine Magnesium reagent starter kit for 25 tests

Sample cuvette and cap (6 pcs.)

Minipipette with tip (1 pc.)

Plastic pipette (1 pc.)

5 mL syringe with black printing and tip (1 pc.)

5 mL syringe with blue printing and tip (1 pc.)

1 mL syringe with tip (2 pcs.)

1.5V AAA Alkaline battery (3 pcs.)

Instruction manuals

Marine Magnesium Checker (HI783) Quick-reference guide

Specification	Detail
Calcium Range	200 to 600 ppm (as Ca²⁺)
Calcium Resolution	1 ppm
Calcium Accuracy @ 25°C (77°F)	±6 ppm ±5% of reading
Alkalinity Range	0.0 to 20.0 dKH
Alkalinity Resolution	0.1 dKH
Alkalinity Accuracy @ 25°C (77°F)	±0.3 dKH ±5% of reading
Magnesium Range	1000 to 1800 ppm Magnesium
Magnesium Resolution	5 ppm
Magnesium Accuracy @ 25°C (77°F)	±5% of reading
Light Source	Light Emitting Diode @ 610 nm
Light Detector	Silicon photocell
Calcium Method	Adaptation of the Zincon Method
Alkalinity Method	Colorimetric Method. The reaction causes a distinctive range of colors from yellow to greenish blue to develop.
Magnesium Method	Adaptation of the colorimetric EDTA method using calmagite indicator. The reaction between magnesium and the reagents causes a blue to violet tint in the sample.
Battery Type	1.5V AAA Alkaline
Calcium Auto Shut-Off	After 10 minutes of non-use and 2 minutes after reading
Alkalinity Auto Shut-Off	After 10 minutes of non-use
Magnesium Auto Shut-Off	After 10 minutes of non-use
Calcium Environment	0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing
Alkalinity Environment	0 to 50 °C (32 to 122 °F); max. 95% RH non-condensing
Magnesium Environment	0 to 50 °C (32 to 122 °F); max. 95% non-condensing Prepared sample cuvette (sample plus reagents) must be 22 to 28 °C (72 to 82 °F) *Warm or cool prepared cuvettes if needed.
Dimensions	86.0 x 61.0 x 37.5 mm (3.4 x 2.4 x 1.5")
Weight	64 g (2.3 oz)
Magnesium Interferences	Calcium below 300 ppm and above 500 ppm
Reagent Sets	HI758-26 (25 tests for Calcium) / HI772-26 (25 tests for Alkalinity) / HI783-25 (25 tests for Magnesium)
Calibration Check	HI758-11 for Calcium / HI772-11 for Alkalinity / HI783-11 for Magnesium
Warranty	1 year

1 Year Warranty

Our Marine Checkers® HC are warranted for a period of one (1) year against defects in workmanship and materials when used for its intended purposes and maintained according to instructions. This warranty is limited to repair or replacement free of charge. Damage due to accidents, misuse, tampering or lack of prescribed maintenance is not covered.

For more information, please visit ourTerms and Conditions or contact our Tech team directly by phone at 800-426-6287 or by email at tech@hannainst.com

Ensure the sample does not contain any debris
Do not rinse cuvettes with tap water or tank water
Clean, dry cuvettes should always be used to prevent dilution. Whenever the cuvette is placed inside the checker, it must be completely dry on the outside and free of any fingerprints, oil or dirt.
Wipe the cuvette thoroughly using our microfiber cleaning cloth (HI731318) or a lint-free cloth prior to insertion
Shaking the cuvette can generate bubbles and this can cause higher readings. To obtain accurate measurements, remove any bubbles by swirling or gently tapping the cuvette
Do not let the reacted sample stand too long after the reagent has been added as this could affect the accuracy of results
Discard the sample immediately after the reading has been taken or the glass may become permanently stained
For our Marine Calcium Checker (HI758):
Use pure vapor distilled water at the C1 phase. Please note that an RODI water filtration home unit may not be suitable for this test as calcium can easily permeate through filter membranes
Clean cuvettes with distilled or deionized water (free of any calcium) when using for C1 phase dilution
Be sure to measure out 9 ml of distilled or deionized water for C1 phase
Check that there is no excess reef tank water on the tip of the pipette. Only administer the saltwater that is sucked into the pipette tip
For our Marine Magnesium Checker (HI783):
Measure liquids accurately using a syringe by drawing up the plunger until the bottom seal of the plunger is at the desired volume mark. Do not raise the liquid to the mark as this will give a false high volume. An air gap between the plunger and liquid is normal
The syringes and tips should be clean and dry as well. Do not rinse with tank water. Rinse with deionized (RODI) water only. Keep the tips with their appropriate syringes during measurement
Clean the syringes and tips before storage
Temperature affects accuracy. Handle cuvette by cap to avoid transferring heat from hands through glass

Marine Coral Care Kit

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