Hanna vs salifert

[DoriReef]

So I just got my Hanna phosphate ulr checker. Used it and got .43 phosphate but I use my salifert test and has only showed 0… so what do I trust?

 

[Saltyreef]

So I just got my Hanna phosphate ulr checker. Used it and got .43 phosphate but I use my salifert test and has only showed 0… so what do I trust?

Hanna. I trust digital colorimeters/photometers vs an eyeball color change comparison anyday.
Unless you are female then your eye for color detail is genetically better than mens.
But make sure your reagent is not expired, cuvettes are clean and you follow the directions explicitly.

 

[BryanM]

Hanna for phos/nitrate. If you want to test calcium salifert.

 

[Mr. Mojo Rising]

IMO the hanna phosphate tester is the best of all, provided its done correctly.

 

[Saltyreef]

Hanna for phos/nitrate. If you want to test calcium salifert.

Spot on. I still use salifert for calcium and magnesium.
The hanna alk checker is actually very fast and easy to use so i prefer that.

 

[DoriReef]

So I just got my Hanna phosphate ulr checker. Used it and got .43 phosphate but I use my salifert test and has only showed 0… so what do I trust?

Hanna. I trust digital colorimeters/photometers vs an eyeball color change comparison anyday.
Unless you are female then your eye for color detail is genetically better than mens.
But make sure your reagent is not expired, cuvettes are clean and you follow the directions explicitly.

Yea realized what may have affected it, used a syringe to get the 10ml water that I used to dose phos a few times. Will have to try again. But just got the reagent and followed yt video

 

[Saltyreef]

Yea realized what may have affected it, used a syringe to get the 10ml water that I used to dose phos a few times. Will have to try again. But just got the reagent and followed yt video

Yeah I would dedicate a syringe to water testing collection.

Unless you threw it away, the directions that come in the hanna box are pretty detailed.
I keep all the directions for my test kits so I can perform the tests according to the manuf. They all differ in contact time so it helps to know whats what without having to rely on youtube.

 

[BryanM]

I rinse everything with rodi after testing as well.