Red Sea calcium test

[Mikef1]

Has anyone here used the red sea calcium test kit. I normally use the natu reef one but they didnt have it and this is a much simpler test. My question is with the red sea kit is it calibrated to a salinity of 1.023. My salinity is 1.024 and with the natu reef you would have to take that in consideration. Anyways it reads my calcium is 350 but I know its higher because I have been dripping kalk like crazy to maintain alkalinity and calcium.

 

[Syris]

I use to use the Red Sea Calc test but had the same problem with calc always reading ~350, wether I was dosing Seachem Calcium or not.
Finally switched to Salifert and found my calc was realy 410 but my Alk was low.

Point is I don't feel the Red sea test kits for Calc or ALk are that acurate or reliable. I've goten much more acurate and relibale results from Salifert.

HTH

 

[Anonymous]

red sea's test kit's reputation is fairly lacking, to say the least :wink:

i'd second the recommendation for one of the 'big three'-salifert, hach, or lamotte