Hanna Instruments Alkalinity Checker Product Demo

Make aquarium water testing easy with Checker Colorimeters from Hanna Instruments. Powered by a single AAA battery, the Hanna Alkalinity Checker will display Alkalinity readings with the single push of a button. The Hanna Alkalinity Checker measures in ppm. To convert to DKH: ppm / 50 x 2.8 = KH. Alkalinity in a reef aquarium should be between 8-12 dKH. Strive to keep levels stable. Testing weekly and recording the results in a tank journal or log should help! For more aquarium product news and reviews, subscribe to our YouTube channel.

Detailed specs and product reviews about the Hanna Instruments Alkalinity Checker are available on our website:

[BulkReefSupply]

Thanks for the advice! We will be sure to relay to our customer service staff to ensure this is not overlooked when helping our customers.

[jackiekearney]

Just got my first Hanna Alkalinity Checker from MD. Wow it's easy as 1, 2, 3. Now I have peace of mind, it's say 148 ppm and it's 8.2 DKH. Thanks MD.

[johnnykat]

I love these checkers I have the alk, phos, and cal..cant wait for nitrate and mag..keep it up guys..Marine depot rocks..

[BulkReefSupply]

@johnnykat21 We love them, too! Thank you for your kind remarks, they are certainly appreciated!

[BulkReefSupply]

@1cubsfan4life 6.2 is indeed low for a reef aquarium. That's why we're using our handy Hanna Checker so we'll know how much to dose. Between 8 and 12 dKH is ideal.

[BulkReefSupply]

@whiteboypatrickkelly The high alkalinity level is probably coming from your source water. Test the tap water or source water before it goes into your tank and you will probably find higher alkalinity levels. Alkalinity levels will affect your pH, but the relationship is not always consistent as many other things will affect your pH, such as CO2. It is therefore possible to experience high alkalinity levels will maintaining a normal pH.

[BulkReefSupply]

@whiteboypatrickkelly If you find the source water is causing your problem, consider purchasing a Reverse Osmosis filter or buying RO water from your LFS. The exact desired alkalinity level depends on the type fish you keep. Most freshwater tropical fish will benefit from General Hardness levels of 61-200 ppm and Carbonate Hardness levels above 80 ppm. Please let us know if you have additional questions or just give us a ring at 1-800-566-FISH (3474).

[jamesconrey]

Good video, but you're lacking one rule when doing these tests. You're not taking the time to wipe off your fingerprints as Hanna Inc. instructs

[soundwave]

if you have a calculator (or decent math skills) you just go PPM x 0.056 = DKH

[matsteel]

You did not wipe your finger marks from the vial

[killuandher]

My meter keeps reading L.Lo. The instructions says to check the preparation of the zero cuvette. I did that and it still doesn’t work. Total waste don’t buy this