Hanna Checker

[Gomery12]

Hanna alk reagent is known to be bad, not a recall but you can plug in your lot number to see if it was affected (google it), even if you bought a new unit, the reagent may be bad. They didn't recall the checkers, or the bad reagent. Still waiting for my replacement.

 

[blacktippr]

It's the Calcium a lot of people are having issues now, I have alkalinity and the new reagents did not change anything on my readings, looks like it was not Friday when they did my batch Jaja.

 

[Bob O]

Ok I used a Red Sea kit and obtained 320 Ca while Hannah checker showed 440. I'm now convinced there is an issue with the checkers. I've worked my tail off thinking I had extremely high Ca and now as of tonight am dosing 280 ml BRS 2 part Ca which is max daily dose for my tank at 65g to get my levels back in line

 

[SouL_Shaker]

Ok I used a Red Sea kit and obtained 320 Ca while Hannah checker showed 440. I'm now convinced there is an issue with the checkers. I've worked my tail off thinking I had extremely high Ca and now as of tonight am dosing 280 ml BRS 2 part Ca which is max daily dose for my tank at 65g to get my levels back in line

Hanna checkers don't work. Waste of money.

 

[Cory]

I like my hanna alk chcker and phosphorus checker. But they have had alk reagent problems with some. Most were reading 1dkh too low. But if you keep alk at say 9dkh, that gives +\- 2dkh room for error or bad kits.

 

[SouL_Shaker]

I like my hanna alk chcker and phosphorus checker. But they have had alk reagent problems with some. Most were reading 1dkh too low. But if you keep alk at say 9dkh, that gives +\- 2dkh room for error or bad kits.

Today I tested my hanna alk checker. There were no difference between hanna and royal nature. It works. Hanna ca checker is known as a problematic solution. Sometimes it shows the ca value as 400 ppm when I had 458 ppm from royal nature. Other times it shows 600 ppm when I had 420 ppm from royal nature. Completely waste of time.

I have milwaukee low range phosphate checker so I don't know about hanna's....

 

[Cory]

Today I tested my hanna alk checker. There were no difference between hanna and royal nature. It works. Hanna ca checker is known as a problematic solution. Sometimes it shows the ca value as 400 ppm when I had 458 ppm from royal nature. Other times it shows 600 ppm when I had 420 ppm from royal nature. Completely waste of time.

I have milwaukee low range phosphate checker so I don't know about hanna's....

I used to have the milwalkee, the green case one? I liked it, and if it wasnt as exspensive i would have bought it again. I think the milwalkee has greater accuracy?

 

[SouL_Shaker]

I used to have the milwalkee, the green case one? I liked it, and if it wasnt as exspensive i would have bought it again. I think the milwalkee has greater accuracy?

http://www.milwaukeeinst.com/site/products/products-by-parameters/phosphate

This is the best po4 product in my opinion. You get the solution less than 20 seconds.

 

[Cory]

http://www.milwaukeeinst.com/site/products/products-by-parameters/phosphate

This is the best po4 product in my opinion. You get the solution less than 20 seconds.

Ah ok. Yeah the one i had 7 years ago was green. The one you shown has +\- 4mg/l as the accuracy while the Hanna says +\- 5%. So your is more accurate. Generally the more you pay, the higher the quality.

 

[SouL_Shaker]

Ah ok. Yeah the one i had 7 years ago was green. The one you shown has +\- 4mg/l as the accuracy while the Hanna says +\- 5%. So your is more accurate. Generally the more you pay, the higher the quality.

I would suggest you ...

 

[blacktippr]

I was having the same issues as a Calcium high reading of over a 100 ppm high on other kits. Wrote to Hanna and they sent me this DI water to use along with this syringe, I was completely scheptical as I was following their instructions very carefully.

To my surprise this did solve the issue. It is reading dead on now.

Hope this is useful for anyone with a Hanna calcium checker collecting dust on the shelf.

Great customer service from Hanna.

 

[Myka]

IIRC, @twilliard is the fellow who has allured to knowing why so many people get Hanna calcium readings 100 ppm high, but I haven't actually read anywhere that he explained this.

I've used the Hanna calcium kit, and it just collects dust. I don't like it. I do really like both the LR Phos and the ULR Phos as well as the Alk photometers.

 

[twilliard]

IIRC, @twilliard is the fellow who has allured to knowing why so many people get Hanna calcium readings 100 ppm high, but I haven't actually read anywhere that he explained this.

I've used the Hanna calcium kit, and it just collects dust. I don't like it. I do really like both the LR Phos and the ULR Phos as well as the Alk photometers.

Yes Mindy the biggest error made is with the syringe when adding the sample water.
The syringe posted above took a lot of that error out.
I was noticing confusion with the addition of .1ml vrs 1ml from the standard 1ml supplied syringe

 

[Myka]

Yeah, that 0.1 mL of sample water is the dumbest thing going imho. Considering a drop of water out of an open-ended 1 mL syringe is more than 0.1 mL. Ha! I do wish they would change it to 1 mL, but maybe the calcium in the sample then is too concentrated for this specific photometer to read accurately.

 

[twilliard]

Yeah, that 0.1 mL of sample water is the dumbest thing going imho. Considering a drop of water out of an open-ended 1 mL syringe is more than 0.1 mL. Ha! I do wish they would change it to 1 mL, but maybe the calcium in the sample then is too concentrated for this specific photometer to read accurately.

Yes it will show over 500 every time. Even took me a few tries when I first started using it till I realized it says .1

 

[Myka]

Yes it will show over 500 every time. Even took me a few tries when I first started using it till I realized it says .1

I meant a redesign of the product so that it uses 1 mL instead of 0.1 mL. I know the current design doesn't allow this.

When I first got the checker I remember doing a double take when I read the "o.1 mL" part. Like, really?? Haha!

 

[twilliard]

Yes who in the hobby is used to adding .1 of anything lol
I'm sure one day they may change the design to help with this common error until then all we can do is help :)

 

[Elementalj]

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

RIGHT!?!? I've calibrated it TWICE

 

[Elementalj]

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

I did the same last night to confirm results.