Hanna

[Ronn]

Looking to buy some Hanna products. Was wondering what the main ones everyone uses more so I know what ones I should buy.

 

[EmdeReef]

Alkalinity and Phosphate ULR. Copper checker if you plan to quarantine and treat with copper.

 

[SPR1968]

Well I use the Hanna dKH alkalinity and also the ULR Phosphate and there both very easy to use and read, especially the alkalinity one.

I’ve tried many of the manual kits and I prefer Hanna for these

 

[dansreef]

I have Alk, CA and Phosphate. I probably use the Alk Hanna the most.

 

[Ronn]

Thanks. Just ordered the alk cal and phosphate.

 

[Gregg @ ADP]

How does the Hanna alk tester compare in accuracy to Salifert liquid reagents?

 

[saltyhog]

How does the Hanna alk tester compare in accuracy to Salifert liquid reagents?

They are very consistent. Alkalinity has always been a little higher on Hanna than Salifert for me. Not a lot though. Hanna phosphate has been spot on with all the ICP tests that I've done.

I've had my units so long that they are the ppm version for alkalinity and ppm phosphorous one for phosphate. I've used them so long I wouldn't even bother with the conversions if my Apex didn't convert them when I log results. I'm really looking at stability/change even more than the absolute number. Hanna has been very consistent for me, especially the alkalinity one. I can do two tests in a few minutes and will get the same ppm or no more than 1ppm different.