Which Alk Hanna checker?

[Crustaceon]

I’ve always preferred titration tests over hanna checkers when it comes to pretty much everything aside from phosphates. Red sea’s alk test has to be one of easiest tests I’ve used for any water parameter. The color change is really easy to see and costs a lot less in the long run compared to buying overpriced reagent packets all the time.

 

[YankeeTankee]

The answer you're looking for is dKH.

Simply because it's the most commonly used unit.