sinking

Do all Coco perlite mixes have to have cal mag added to them because of the coco ? I read that they do something that causes the medium to lack it, but where i get confused at is whether I have to add it to my Mother Earth Coco perlite 70/30 mix before I transplant my plant and if its mostly for...

Hello guys 2nd ever forum post here on 420Magazine, this is my first time growing and experimenting with growing but I took honors Biology and Agriculture so I know a little around here. But I'm having some troubles with getting my seeds to sink. Yesterday I started the germination process with...