Poor Habib. I'm with Kip!! Instead of trying to fill the little blue spoon half way, Habib ought to make a half spoon and if we want to double it up, we can.
Don't worry about me.
FWIW for the low res using a half spoon is not critical. It does not change the value. If it is say 25% more or less, it would not matter at all.
If there more questions about the amount of that powder added vs effects then you're welcome to come to the Salifert forum and I'll give more details about it.