lucas Formula with LEDs - wtf!?!

[New2LEDs]

This has been my first LED grow and I chased my tail some . I see no need to lower your ppm once they are out of seedling stage . I run 6/9 for veg and found cal mag is a must with the LED . I switch to bloom only during flower and just add bloom only nutes during flower adjusted to 750 ppm and feed twice a day . I still add some cal mag once a week at 5 ml per gallon . I’m in coco drain to waste in net pots . Next run I plan to foliar feed epson salt as well . I used quality bag coco and buffered before use . I know the LED is causing some cal mag issues as I put half the grow on a 600 HPS and they look night and day compared . Watch how close you get those LED I fried some plants from too much light . LESSON LEARNED !

i apprecaite the info. thanks for sharing. lucas in coco is a different animal than most other hydro mediums... the 6/9 is the H3ad recipe modification to the lucas, for coco... H3ad ( username on OG came up with that recipe. ) i fed a few plants yesterday with the 5/10 and i see a little white tip burn. but the rockwool cube ph was also at 6.3 on one of them, and 5.9 o nthe others. my tager is 5.8. so its telling me to adjust the food a little more, but not much... so i will need ot check run off again and see if was ph burn or nute burn before upping the feed.

i have seen on other boards many people experienced with the lucas formula in LEDs say the 6/12 is good to go for bloom. but noone really clarifies for early veg ad late veg... i veg under 200-250PAR for early veg ( 3 weeks ) and then another 3 weeks at 400-600PAR ion late veg, and then flower at 800-1000PAR. i did one LEDrun back in 2018 and i remember the veg sucked because it was too cold, adn flower was quality but yields sucked, bc room was too cold... now temps are all good, and rh is on point. just need ot maximize the food, so we can make the best of it i have a lot of C99 hybrids and she takes extra calcium in weeks 6-8 of flower anyway.... i never had to use cal mag...

 

[Dividedsky]

i apprecaite the info. thanks for sharing. lucas in coco is a different animal than most other hydro mediums... the 6/9 is the H3ad recipe modification to the lucas, for coco... H3ad ( username on OG came up with that recipe. ) i fed a few plants yesterday with the 5/10 and i see a little white tip burn. but the rockwool cube ph was also at 6.3 on one of them, and 5.9 o nthe others. my tager is 5.8. so its telling me to adjust the food a little more, but not much... so i will need ot check run off again and see if was ph burn or nute burn before upping the feed.

i have seen on other boards many people experienced with the lucas formula in LEDs say the 6/12 is good to go for bloom. but noone really clarifies for early veg ad late veg... i veg under 200-250PAR for early veg ( 3 weeks ) and then another 3 weeks at 400-600PAR ion late veg, and then flower at 800-1000PAR. i did one LEDrun back in 2018 and i remember the veg sucked because it was too cold, adn flower was quality but yields sucked, bc room was too cold... now temps are all good, and rh is on point. just need ot maximize the food, so we can make the best of it i have a lot of C99 hybrids and she takes extra calcium in weeks 6-8 of flower anyway.... i never had to use cal mag...

Hey I just switched over my t5 veg lights to led so I know what your growing thru dude. I did my first run with leds in flower last fall and everything went great. Today I switched a few of my veg rooms over to led...even though I love t5s for veg they just jusy dont make sense to run these day with high electric costs. I was running on average about 1730 watts of t5s in veg, sometimes more sometime less. In my 5x5 veg area I was running 864 watts alone a
18 hrs a day, now with led I'm running just 440w for the 5x5. Anyways I use grow tents just for veg and with the inline fans ans young clones in the tent I find that my RH % is way too low, have my fan cranked low and until the olants get bigger I'm going to have low rh%. I will probably go pick up a humifier tomorrow.

 

[New2LEDs]

Hey I just switched over my t5 veg lights to led so I know what your growing thru dude. I did my first run with leds in flower last fall and everything went great. Today I switched a few of my veg rooms over to led...even though I love t5s for veg they just jusy dont make sense to run these day with high electric costs. I was running on average about 1730 watts of t5s in veg, sometimes more sometime less. In my 5x5 veg area I was running 864 watts alone a
18 hrs a day, now with led I'm running just 440w for the 5x5. Anyways I use grow tents just for veg and with the inline fans ans young clones in the tent I find that my RH % is way too low, have my fan cranked low and until the olants get bigger I'm going to have low rh%. I will probably go pick up a humifier tomorrow.

i love t5 i nveg too.... but doing all led. vegging early in a tetn too. i am running about 82-84F and 70-75%rh and my plants are loving it.