As usual, I'll be growing in a light soil mix comprised of various promix media, some FF OF/HF and some organic potting soil. Occasionally I hit a bag of soil or mix that seems to be really hot, so I've found that always doing a blend minimizes the damage that can occur when this happens. Soaked 4 x Afghani regs and 2 x Pure Kush fem (Canuck seeds) for 18 hours, then put them in jiffy pellets on top of an electric radiator. My heat mat doesn't get quite warm enough for good germination, 88 F seems to be the sweet spot. After 48 hours, all six have sprouted, one Pure Kush is still shedding her helmet.