test result on salifert mag

[fishguyxd]

Can someone confirm when using this kit on average how much Mg-3 solution one should use?{ example 1/2 or 3/4 of mg-3} or what the reading should be to get about 1350 ppm?
(or how much solution should be left in the syringe).I just want to confirm my readings.

[midgetwaiter]

You should have .1 ml left in the syringe for 1350