Hanna Checkers

[joeyprice]

Which ones are worth buying? Also, I see that some (PO4 for example) have a low and ultra low range, which should I get?

 

[Steve Burton]

I am very happy with Hanna ultra low phosphate, calcium, alkalinity, and copper hr. I have no experience with any others.
Edit: I do have a Hanna handheld ph tester which is fine, but I practically never check ph.

 

[ActiveAngel]

If I had to rank them into categories:

1) Alk
2) Phosphorus ULR
...
2) Copper (for quarantine/medicating)
3) Calcium
...
then others at much lower priorities.

 

[Adam]

Other than the four listed here, which I have, I'm really looking forward to the Nitrate test coming out next month.

 

[urbanknight]

Other than the four listed here, which I have, I'm really looking forward to the Nitrate test coming out next month.

I already pre-ordered mine!:Thumbsupa: