To add nutes or not

Hi fellow gardeners, just a quicky I have some blue cheese 2 weeks into veg 12 inches tall from rooted clones they are in 15 litre autopots and I plan on switching the watering system on in a few days just letting them fill out their pots at the mo. they are in house and gardens bat soil mix but they guy at the grow shop said this soil is good for 4 weeks with no nutes as it already has it in it. I have house and garden soil a and b and was wondering weather to add this to my res at half strength or something any advice welcomed cheers cheeseyfeet

Nope, not yet, and when you do, if your using good soil you shouldnt have to use full strength or 1000 ppm for a long time if ever. Listen to the hydro store advice. Ask the guy how hed feed if he has expirience with it.

Thanks for advice ninja bowler I did have a lengthy chat with the guy but what's confusing is he gave me a feeding chart for the 100 litre res I have which states to use them so I guess I just follow it once flowering as I only have a few more weeks veg left and didn't wanna burn my girls