Another thing, I'm going to start the whole grow from start to finish in 4.75 gallon pots. I don't want to bother with the transplant causing stress for the plants. My question now is, I'm going to use 75% Fox Farm Ocean Forest soil & 25% Fox Farm Perlite....with the seedlings being in 4.75 gallon pots how long can I let the plants feed on the nutes in the soil itself for before having to start feeding them myself?