Test Kits - your valued opinions

[new2salt]

Saltwater test kits

What do you use - and why?

Any past experiences - good or bad.

Reason I am asking is, I need to replace/replenish some of my test kits.
Looking for better quality than what I am currently using. Assorted Hagen Test kits
Looking for better range and accuracy.

[RossW]

Salifert or Elos come to mind with that statement.  Having said that, I use Salifert for Magnesium and API for Calcium and Alkalinity.  IMHO, the API are good enough for me, and many others on RC believe so also.  I dose and don't care so much if my calcium is 410 or 420, as long as it is consistent week over week.

Looking for better range and accuracy.

[Rybren]

I use API for everything but Mag.  I have a Red Sea Mag test - it was cheap, but I've since read that it may be less reliable than some of the other kits.

[Hookup]

Salfert for all but will get faunamarin for potassium when I start dozing that...