Timing for Ebb & Flow: how often flooding per day?

I am new to E&F. I am running the Active Aqua Flow & Grow and had it starting every 4 hours and letting the pots sit in the solution for 30 minutes before it drains.
I was at my hydro store yesterday and my hydro guy said I should start every 3 to 4 hours and let the pots sit in the solution for an hour. I will be switching to a 3 hour start time and let the sit in the solution for one hour then drain back into the reservoir. My plants got off to a slow start, I started them in 1.5" rockwool cubes and they took a while to emerge and then it took quite a bit to see any roots. I transplanted into the grow pots and began hand watering until the roots emerged from the bottom of the pots. They have been on auto now for about a week.

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DreamwalkerJ said:

Hey I know this is really old but JUST IN CASE you still need help, I just joined the site but have been growing for 15 years and I've been gen hydro nutrients for a while. I use the flora series. OK so. First of all, drain-to-waste is only for soil or coco and if you're in coco, you should have a 20% runoff every irrigation. But if you're using ebb and flow (or any hydroponics), even if you're using coco coir as your grow medium IN hydroponics, you use the "recirculating" charts. As for gen hydro's recommendation to use only plain water every 3rd feeding or so, that's only for drain to waste (soil or coco) in recirculating systems (hydroponics) you fill your reservoir with nutrient solution and then you keep checking your pH/ppm/ec and once your ppm/ec rises enough, add fresh water to the res (it means the plants are drinking more water than they are eating nutrients). Change your res every 2 weeks and whenever your plant changes stages (veg/bloom/aggressive bloom/ripen) THEN you use ONLY fresh water with no nutrients for the last 10 days to flush the nutrients out before harvest. I know this is a really late answer but ive grown in soil for a while and now in modular ebb and flowbso if you're still interested in growing and need advice, just ask. If you're good and you got everything running nicely, then I'm happy for you and wish you many bountiful harvests.

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EDIT: ALSO about the ripening, there are 2 ways. Watch the pistols (the little white hairs) they will start to turn orange and curl up as the plant is maturing. BUT if you want to harvest for POTENCY, then you watch the teichomes (crystals). Get a little 60x jeweler's loupe to magnify the trichomes. You will see clear stalks with little clear heads on them. They look kinda like mushroom or like something a little more.... phallic. They start as clear little spikes then they grow the heads on them and will turn from clear to a milky white. That is when major cannabinoids are developing. NOW is the perfect time to harvest. If you wait,the trichomes will start turning from that milky white to a deep amber color. This happens as the THC breaks down into CBN (I believe) which cause more of a "couch-lock" type feeling. So now you can harvest at a time that suits your personal tastes. If you really dont like the very cerebral, "heady" type of high as much, then let the trichomes mature to a light yellow instead of harvesting when they're milky white. NOTE: 3 types of trichomes have been identified and some will be an amber color from the start and stay that way so make sure your trichomes are turning amber and not growing amber. (There are also tiny small flat bright red trichomes rich in CBD that stuck to the surface but they are rare. Scientists now believe that it's these different trichomes that determine a strain's cannabinoid count (ratio of THC/CBN/CBD/CBG ect...) remember, there are 113 different cannabinoids in cannabis and more
Happy Harvests - J

EDIT: ALSO about the ripening, there are 2 ways. Watch the pistols (the little white hairs) they will start to turn orange and curl up as the plant is maturing. BUT if you want to harvest for POTENCY, then you watch the teichomes (crystals). Get a little 60x jeweler's loupe to magnify the trichomes. You will see clear stalks with little clear heads on them. They look kinda like mushroom or like something a little more.... phallic. They start as clear little spikes then they grow the heads on them and will turn from clear to a milky white. That is when major cannabinoids are developing. NOW is the perfect time to harvest. If you wait,the trichomes will start turning from that milky white to a deep amber color. This happens as the THC breaks down into CBN (I believe) which cause more of a "couch-lock" type feeling. So now you can harvest at a time that suits your personal tastes. If you really dont like the very cerebral, "heady" type of high as much, then let the trichomes mature to a light yellow instead of harvesting when they're milky white. NOTE: 3 types of trichomes have been identified and some will be an amber color from the start and stay that way so make sure your trichomes are turning amber and not growing amber. (There are also tiny small flat bright red trichomes rich in CBD that stuck to the surface but they are rare. Scientists now believe that it's these different trichomes that determine a strain's cannabinoid count (ratio of THC/CBN/CBD/CBG ect...) remember, there are 113 different cannabinoids in cannabis and more terpenes than that. It is the combination of these 2 things, which cannabinoids and which terpenes and in which amounts, that determine each strains individual effects. Even though it's late, I hope this info helps you or anyone else that reads it for that matter.Happy Harvests - J

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