Just flushed, what i do next?

Hi mate! First I would like to know what is the reason you believed you had a lockout.... Also one thing I'd like to know is the growing medium since you are using hydro nutrients, and in your current journal for an other plant you are in soil... Are you in coco or in soil? OK, let's try to help! =) If runoff ppm is at 20 you need to feed her now! If you are in coco, continue using using hydro nutes, and follow the manufacture feeding chart at half strength to start. If you are in soil and are trying to feed her with hydro nutes, this is not advised but still doable, requiring some grow experience as you will have to feed her according to her needs. Best thing I would suggest is to soak the soil with 450 ppm solution, and switch to nutrient for soil, organic or manmade. If you take the organic route, their is basically 2 approach: 1 would be the dry amendments way, using meals like blood meal, bone meal, alfalfa meal, fishbone meal.. and the list goes on. This is the best, greenest and cheapest way, but dry amendments take time to break down. 2nd approach trying to be organic would be to use bottle stuff like BioCanna, or Nectar For The Gods brand, witch are expensive and in my humble opinion, just as manmade as non organic nutrients.