calcium test kits

[dammar]

I need to pick up a calcium test kit (i procrastinated getting one till it slipped my mind) and im wonder about brands.
are there any specific brands for the test kits that anyone has found to be more reliable than another given brand?
all my other test kits atm are marineland instant ocean ones.

 

[renogaw]

everyone says the saliferts are most reliable. more expensive, and sorta hard to deal with the first couple times, but still more reliable.