How to Use Hanna Checker Colorimeters to Dial In a 2-Part Calcium & Alkalinity Dosing Regimen Maintaining proper water chemistry is arguably one of the more difficult aspects of keeping a healthy captive reef tank. It can be especially difficult for those of you who are just starting out.

Thankfully, we have some amazing tools and supplements that can really help us on our journey to creating a beautiful thriving reef tank at home.

In this video, we are going to show you how to use Hanna’s extremely popular Checker Colorimeters to dial in a reef dosing regimen using the most popular two-part solution on the market, ESV B-Ionic!

#hannachecker #calcium #alkalinity


Hanna Checker Marine Calcium Colorimeter:

Hanna Checker Marine Alkalinity Colorimeter (dKH):

ESV B-Ionic 2-Part Calcium & Alkalinity Supplements:


Calcium Supplement Calculator:

Alkalinity Supplement Calculator:

Reef Tank Parameters Chart:

Aquarium Logs to Record Maintenance:

Hanna Checker Videos (on Hanna's YouTube Channel):