Kent Turbo Strontium - Help with mixing Amounts

O.K. So I've decided to use it.

The jar says make a 10% solution by weight by adding 10 grams to 100ml.

Now are they saying 10 grams of powder in WEIGHT. I have a postal scale that I can get that pretty close but haw many people do?

It just seems odd. Anyone have any Factual information to tell me.

Do I actually weigh this or is it a teaspoon measurement?

 

I'd say as long as your pretty close its all good. I use to use a capful of 3 kent trace elements a week. I've since stopped because I changed to weekly 5 gallon water changes so the salt mix takes care of it. But when I did that it was not exact, but all of my levels were in check.