Soaked all seeds in water for about 8 hours and placed them in wet paper towels afterwards. After another 24 hours, all three seeds have already germinated - 100% success!
Consequently, the germinated seeds were put in soil (0.1 liter pots).
@lordMandanga, Thanks mate, I´m really looking forward to the effect when smoked, for both plants. I am also curious which one of the HashTonic chemotypes I will get. 👍