Top feed irragation feeding scheduel?

Im feeding them every 3 hours, for 4 mins each feed, 24 hrs a day. To much, to little, What u think? They are healthy plants, had a little leaf curling issue but leeched and changed nuts last night so should take care of it.

Watered my nuts down a little bit cause I heard Technafloras recipe for success is a little strong for beggining veg. My temp ranges from 82-74. They are 16-18 inches from 400W MH, I have a intake and exhaust system running 24 hrs a day. I keep PH level around 6, usually haveto add PH-down every day. I dont have the nute constantly aerating, it passes through my top feed drip system and then pours back into the res. aerating every 3 hrs during feeding cycle. Is this enough?

Watered my nuts down a little bit cause I heard Technafloras recipe for success is a little strong for beggining veg. My temp ranges from 82-74. They are 16-18 inches from 400W MH, I have a intake and exhaust system running 24 hrs a day. I keep PH level around 6, usually haveto add PH-down every day. I dont have the nute constantly aerating, it passes through my top feed drip system and then pours back into the res. aerating every 3 hrs during feeding cycle. Is this enough?

I haven't used it so I am not sure, but I have a top feed system and added an air stone/pump setup, I have a 1000 watt light and the same nutes u have also, and heard the same, u might want your pH to be more around 6.5, as low as your running it, it might lock out some nutes. also, unless your on a 24/0 cycle, you dont need to feed at "night", I was planning on making my first cycle to be about 5 to 10 minutes before "sun up" so the day starts with fresher nute solution in the media

what medium r u using? i have a similar setup using rockwool, i feed every 4 hours for 15 mins but dont feed during lights out. no dramas for years now. and u should have an air stone, they r essential.

Hydroton, ive stopped the nutes and have just been flushing with water the last 24hrs, gonna start them up again tomor, thinking about feeding once every 6 hours then no feed during lights out, hows that sound?

When ive grown solely in hydroton I have fed all every hour for 15 minutes. Hydroton doesn't retain much water so i felt it important to feed that regularly. The good thing about that medium is that the plant shows signs quicker when it is thirsty, so i'd keep going with what yr doing but monitor your plants and see if they look thirsty.

EDIT> I have only ever grown solely in hydroton with a flood n drain setup so things could be different that way.

My Hydroton actually holds moisture pretty well, Ive been leaving for more than 6 hrs and its still moist by the roots.

What type of water are you using? I'm pretty sure you shouldnt have to add ph (-) everyday. Whether its tap, distilled, spring, etc can have a lot of effect on the ph level.