Calcium Different readings Hanna and salifert

[Fredrxn]

Sup guys I just tested my calcium with Hanna checker and it reads 413…I also tested with salifert calcium and it reads 350…what one should I go off of?thanks if the Hanna is that far off would this be why my torch corals never fully open?

 

[Uncle99]

Salifert.
My Hanna CA is all over the place. It’s only Hanna meter I dislike.

 

[Fredrxn]

Salifert.
My Hanna CA is all over the place. It’s only Hanna meter I dislike.

Would calcium at 350 make my torch coral unhappy

 

[sam2110]

Mine are always basically identical, use distilled water in you hanna not rodi, works a treat. There was another thread about this exact thing this evening I took these test today as a comparison for that thread

Salifert new style test 400ppm

 

[Uncle99]

Would calcium at 350 make my torch coral unhappy

Doubt it.

 

[Iant419]

Sup guys I just tested my calcium with Hanna checker and it reads 413…I also tested with salifert calcium and it reads 350…what one should I go off of?thanks if the Hanna is that far off would this be why my torch corals never fully open?

I would order some analytical grade De-Ionized water for that hannah checker. Our RODI systems don't put out high enough quality or consistant enough water to use as a refernce for that checker. It's really stupid that they didn't use a prefilled reference cuvette. Maybe the variation between cuvettes can mess with the meter. And distilled water is not the same as de-ionized.