Look at these date codes - I was looking for Cuvettes

[william Lutman]

Hey, @Hanna Instruments

With two Cuvettes now coating more than I bet I paid for these... Anyone want to buy vintage Hannas?

Will they still work? Alc, Calcium, and Phosphate checkers.

I was looking for the cuvettes... Where do I look next?

Now how about these reagents?
2015

2013

2015

 

[Randy Holmes-Farley Verified Community Expert]

I would not use any of the reagents.

The cuvettes (if clean and not scratched up) and electronics should work with a new battery.

 

[Randy Holmes-Farley Verified Community Expert]

I'm not a fan of Hanna calcium due to the design flaw (IMO) of taking only a tiny tank sample and having a big multiplier on the answer. It gives folks lots of headaches and many throw it awayy.

 

[william Lutman]

I would not use any of the reagents.

The cuvettes (if clean and not scratched up) and electronics should work with a new battery.

I was not planning on using any of it. I never use any out of date testing supplies.

 

[william Lutman]

I'm not a fan of Hanna calcium due to the design flaw (IMO) of taking only a tiny tank sample and having a big multiplier on the answer. It gives folks lots of headaches and many throw it awayy.

What test do you suggest?

 

[Randy Holmes-Farley Verified Community Expert]

What test do you suggest?

I personally do not measure calcium at home because the way I dose calcium and alk and magnesium (AFR and regular water changes), tracking alkalinity alone is sufficient to keep the others in line.

But many folks do prefer the Salifert calcium kit to the Hanna.

 

[RoanokeReef]

These are a great buy if you still have your lids - https://hannainst.com/hi731359-round-glass-replacement-cuvettes-for-hi759-25-pcs.html

 

[steveschuerger]

I personally do not measure calcium at home because the way I dose calcium and alk and magnesium (AFR and regular water changes), tracking alkalinity alone is sufficient to keep the others in line.

But many folks do prefer the Salifert calcium kit to the Hanna.

I did this. I went all in on Hanna stuff when I got my first reef. Several tests were replaced with Salifert including calcium eventually.

 

[william Lutman]

These are a great buy if you still have your lids - https://hannainst.com/hi731359-round-glass-replacement-cuvettes-for-hi759-25-pcs.html

OMG look at this $42.99 for FOUR caps. I could make more money than selling frags?

 

[Randy Holmes-Farley Verified Community Expert]

lol

It’s a nice business model, if anyone buys them.

 

[IceNein]

These are a great buy if you still have your lids - https://hannainst.com/hi731359-round-glass-replacement-cuvettes-for-hi759-25-pcs.html

Well I'll be. Same cuvettes, different lids? Pretty sneaky. I like it.

I always did want to digitally grade maple syrup.