It's quite likely that there is an instruction on the bottle for use as a foliar feed.
If there isn't go ahead and use it at the recommeded strength. Add one drop dish soap as a sticking agent.
Go easy; don't drown them... A spray today, then another tomorrow.
stinkyattic Reviewed by stinkyattic on . Not Sure How do these look, i'm not sure if i have Heat stress, or from what i was told when they arrived on Aug 22nd they this plant is normally light/pale green... 400w MH on 24/7 feeding only water - i think they are too young for fert Misting twice a day Temp - 75 - 84 Hum - 42 - 54% fan blowing light all the time. Arrival Day and now Rating: 5