I tried growing indoors once, in soilless mix, and the seedlings started out fine, but later died because I overestimated the soilless mix's ability to retain water. For my second attempt, I've ordered seeds from marijuana-seeds.nl, AK-47 along with some free Thai X Skunk. I'm growing partially for my dad's medical needs, and I don't wanna fuck up again, so I'm considering soil this time around, even though I'd way rather do hydro, but I just have trouble understanding the ideal medium and the use of nutrients and pumps confuses the hell out of me. Could someone give me a brief overview of what they'd recommend, and make it more understandable for me?