feeding my hempy buckets flora nutes

i just transplanted my two week old kids to "hempy buckets" i have been using ro water during the seedling stage,and for the first watering in buckets,when can i start the nute feed schedule?? using gh three part, "hard water micro,1/4 tsp,grow,1/4 tsp,and bloom 1/4 tsp... have couple 100 watt cfl 6500. they looking good short and bushy i guess... any help???

i usually start feeding them about 2 weeks after they root with a very light 1/4 strength feed, then bump it up slowly over the next 2 weeks or so. I've used the three part series for a while now. my advice is not to go full strength right away but to work up to it. Your plant should tell you if it wants more or less. Also, make sure you do a decent flush every few weeks to get rid of the excess salts that GH like to leave in hempy systems. hope this helps. good luck