First autoflower grow(need nutrient help)House&Garden

I am using foxfarm soil and have House & Garden nutrients soil a&b multi-zen, bud-xl, drip clean, roots xcel and top booster. I was told not to feed them for the first month or so because the soil I have has nutrients in them and it will burn them. SO when it is time should I tune it down a little bit?
 
Top