Used lukewarm water to fill the jar, added the seed and placed in the kitchen cabinet (dark space) for 24h.
After checking, the seed had sunk to the bottom and we transferred her onto damp paper towels, and placed this between 2 plates in the livingroom cabinet.
After another 36h she was ready to be planted in the soil.
@Cyabro, SF1000 Spider Farmer, will upgrade and buy a second one next week to start flowering separate from the auto's that are now in the tent with them. I've had it on 60% most of the time, they didn't seem to care for more intensity so far, and about 30cm distance.