Hanna Checker

[blacktippr]

Any reviews on the Hanna Calcium Checker,
Does anybody knows if Hanna checker for Iron and Iodine work on Saltwater?

 

[Duberz]

I have found the results you get are all over the place.

 

[Randy Holmes-Farley]

Any reviews on the Hanna Calcium Checker,
Does anybody knows if Hanna checker for Iron and Iodine work on Saltwater?

Their iodine checker detects the wrong form (I2, not I- or IO3-) and it does not detect low enough anyway.

Their iron checker was reviewed here, but probably does not read low enough to be useful for most reef aquaria:

http://www.advancedaquarist.com/2012/4/review

 

[blacktippr]

As always Randy Thanks much for your reply.

 

[Chac317]

I've been using the Alk checker for about a year and I like it. My results have been consistent. I test twice in a 5-10 min period every once in awhile just to make sure. I prefer it to Salifert but I do keep a Salifert kit around just in case.

The pH checker though, that's a whole different story for me o_O

 

[Chac317]

Yikes. I read that wrong. Never used Calcium. And I've heard it is inaccurate like Duberz said. Sorry for the misunderstanding...

 

[Randy Holmes-Farley]

As always Randy Thanks much for your reply.

You're welcome.

Happy Reefing. :)

 

[SouL_Shaker]

You're welcome.

Happy Reefing. :)

Hey Randy ,

My royal nature and tropic marin tests marked the ca solution as 420 ppm.

However hanna marks the solution between 500 ppm or 580 ppm. Everything is correct.

Do you have any tips ?

 

[Bob O]

Mix some of your brand of saltwater to 35 ppt and proper temp and assuming you know the calcium level of your salt mix see which of your test methods is the closest. That's one way I would check.

 

[SouL_Shaker]

Mix some of your brand of saltwater to 35 ppt and proper temp and assuming you know the calcium level of your salt mix see which of your test methods is the closest. That's one way I would check.

My tank is 200 gallon. Tropic marin reef salt ca level is 420. Tank is a little stressed recently. There were no dropping down on elements. But hanna used to show ca level as 420... I did not dose anything for a month.

And checker started marking level as 550 , 570 and 580. Is that a common fault ?

Do you think there is a manufactory fault on hanna checker ?

 

[Bob O]

You do have me curious however as I purchased the Hannah calcium checker some month ago and my first test showed a flashing 600, meaning result was higher than 600. I had about two weeks prior been heavy dosing calcium as my "expired" test kits were showing me at around 300 prior to the corrective dosing. I have done multiple water changes and calcium yesterday was 500 with Hannah.

I did see someone comment earlier about Hannah calcium checker results being all over the place. I don't find that to be true in my case but I too am now wondering if it is giving higher than actual readings.

 

[Bob O]

I also use the Hannah phosphate and alkalinity checkers

 

[blacktippr]

For now it's working for me, I've been comparing to Red Sea and both are the same.

Hanna 459 and Red Sea righ around 450

 

[SouL_Shaker]

I also use the Hannah phosphate and alkalinity checkers

Alkalinity works fine. There is no problem with it. I have low range milwaukee on po4.

For now it's working for me, I've been comparing to Red Sea and both are the same.

Hanna 459 and Red Sea righ around 450

When did you buy the photometer ?

 

[blacktippr]

Alkalinity works fine. There is no problem with it.

When did you buy the photometer ?

Hanna is a week old .

 

[SouL_Shaker]

Hanna is a week old .

I had the same result on the first week.

 

[blacktippr]

I had the same result on the first week.

Did it started drifting over time?

I bought the standards so I can compare results if I believe it's off.

 

[SouL_Shaker]

Did it started drifting over time?

I bought the standards so I can compare results if I believe it's off.

On the first week everthing was normal. After a week it started struggling (not to show the truth all times) ...

But hanna kh photometer works perfectly.

 

[blacktippr]

Awesome , I did test tonight it's 2am and guess what, it's off about 100 PPM HIGH as everyone is stating. We should all do a massive claim for a recall from Hanna. Mine is a new unit.

Thanks for the heads up.

 

[blacktippr]

On the first week everthing was normal. After a week it started struggling (not to show the truth all times) ...

But hanna kh photometer works perfectly.

Thanks for the heads up.