How I have done it for years. the only problem is you can't see the roots developing so you have to wait for visual cues from the top of the plant. Or you could use a clear cup and put it inside of a darker cup.
Thanks for the reply Nizza. After reading the info on that page I'm going to do a side by side with Jack's duo and some true hydro nutes. Worse case scenario I switch to the one with the best results in flower.
So does anyone use jacks classic duo in Hempy. Long time lurker normally in dirt but looking to take a stab at Hempy but I would like to follow the same feeding schedule to see if it improves yield.
A loud noise is the best deterrent. Find some cheap instant coffee, or some type of metal canister with a lid that is short and squat in size. Take about a dollar or two worth of random change and put in it. Tape the lid on with electrical tape or duct tape. Shake when there is a bad behavior...