Tussel is right,
you will spend way more on the hobby of trying to grow small amounts than just buying it.
Plus it will probably be better than what can be produced in a Micro Grow.
If. You are going to grow try LowRyder#2, just a suggestion.
you can find it thru seed banks all over the net.
Read the forums the answers are all there.
Good Luck!
Bless,
DZ