Calcium test

[Ramon84]

Best and most accurate calcium test kit going to start dosing say I need to be checking calcium regularly I currently use api

 

[KrisReef]

Calcium and API is the one test they make that I am ok with. I'm using a calcium reactor so as long as dKh is good my Ca follows nicely.

 

[Maize & Blue]

Red Sea and Salifert are consistent. Salifert reads a like less the the Red Sea kit.

 

[mmorrison55]

I regret buying the Hannah checker for calcium. Way more complicated and unreliable for them to have put their name on it.

 

[Pistondog]

Ive had good luck with red sea. They make a pro kit: calcium, alk, and magnesium.
Hanna uses 0.2 ml of water to test, which is difficult to measure accurately, even with the included device.