Which one HI772 or HI755?

[keystoneckp]

Which one HI772 or HI755 for dKH testing?
Is one better than the other?

Thanks
Chuck

 

[cracker]

I assume your speaking of Hanna checkers. which one ?

 

[Larry L]

@Bulk Reef Supply did a very good comparison video, it kinda depends on what range of phosphates you are trying to keep in your tank:

 

[Nick30G]

Guys hes talking about the Hanna DKH tester... Not the phosphate tester. One version 755 measures alkalinity in ppm, meaning you will have to a do a conversion to get to DKH. The 772 Automatically does the conversion to DKH so i would get that one.

 

[keystoneckp]

Thanks, that what I thought was the difference