Testing tank water

[Daylilly]

What's the best thing to use to test water???
Currently using dip strips but it's confusing I find

 

[mr_X]

the strips are not very accurate.
get one of these:
API Saltwater Master Test Kit

 

[melosu58]

I use API also.

 

[bavass]

I use Salifert test kits always been 100% happy with

 

[cmor1701d]

I use Salifert for most tests. I use a meter for pH and the Hanna handheld checker for PO4.

If using the API or any other liquid test kit I recommend getting a dosing syringe at the local drugstore. Most kits call for 5 ml of water for testing but the silk screened line is rarely at that level.