quick questionabout soil?

what is some good soil that i wont need to add nutrients in for some time? as you all can see in my other post the plants arnt doing that good. so i wanna try something diffrent. ive got a bunch of babies that are about 3 weeks from seed and im ready to transplant into bigger containers but i need to decide on soil cuz i dont want to be like the others. thanks for the help guys.

ok if your going to transplant you dont have to do this but it will make a difference, anyways try to put them in the biggest plant pot as possible to cut down on transplanting it will stress your plant so whatever size your going to flower them in transplant them into that now,ok for a soil mixture, i have been thinking about this for a while and i have a couple posts on it too but for plants you want a soil that will have lots of aeration and drainage with lots of nutes for your plants so you could go with promix but it can cost quite a bit if you have alot of plants so what i'm going to do is mix my own soil using

30% top soil
10% peatmoss
30%perlite
20% vermiculite
10% compost

you can try this i hope it works for you
good luck!!

anbody else? any one use foxfarm soil and how was it?