It was irritating enough that the original poster didnt take it upon himself to do a little rearch of his own, then, when he directed where to find such information, aka, THE FAQ's, you come along, ignore the same sage advice, and post info from a different site.
The original lazy poster then thanks you for your directions because he is STILL too lazy to go to the FAQ's. Another poor schmoe will read all this later, and then confusion grows as too which is really the "right" formula, because people are saying different amounts.
And why? Because it started with two lazy people.
In this forum, there is only one right formulation and, believe it or not, it is STILL in the FAQ's!
Educate yourself to THIS forum by reading through hundreds of posts listed here, there is tons of valuble info available, you will be helping yourself and others.