You can germ in rockwool or jiffy 7 pellets. If rockwool you get them going till roots come out the rockwool and put in netpot with hydrotron clay rocks. If you go jiffy's , start them good and cut the side of the pellet and wash off dirrt so it's not in your system. Then place in rocks. You can judge how deep to put them in the netpots.
Sounds like you been doing your home work. Keep reading and asking. Don't forget your metters PH and TDS. Calmag plus and good nutrients.