PJ Diaz
Well-Known Member
Good point, though I would hope that folks growing under LED would already be compensating for this and ideally have similar leaf surface temps either way. In reality most don't however.
calvin.m16
Well-Known Member
calvin.m16
Well-Known Member
Bro those Mars Hydro EATTTTTTTT
twentyeight.threefive
Well-Known Member
Plank? Since you run 1.2 EC - 1.3 EC under HID do you run 3.0 EC under LED?
twentyeight.threefive
Well-Known Member
All the Instagram growers are pushing 5 EC. Get with the times.
Babalonian
Well-Known Member
Just think, our grandkids will be cursing us, while using direct laser light projectors in zero gravity co2 tents, because we had it so cheap and easy, compared to them, and the costs they pay in nutrients to achieve an EC of 26.
Edit: and pissed at us for not leaving them more money so they could afford those genetically modified predatory mites that shit calmag
Edit: and pissed at us for not leaving them more money so they could afford those genetically modified predatory mites that shit calmag
Samwell Seed Well
Well-Known Member
Dont worry about it, im feeding the same now as when i was under only hps and mixed lighting and just leds
Its not the EC its the enviroment and the plant... EC is only only ine measurable metric/imdex and you cant for force feed plants, they only eat what they can/want. That is a bit simpified but basically true
4.0 -3.0EC for 1-2 feeding a day for the last 6 weeks for these plants, no burning few dry downs in veg but no burning.
Could i have gone lower sure... but why...just a few oz's extra pays for the added nutrient cost. More volume more market share...
The race to lowest cost was never a concern when your shadow yields pounds
Star Dog
Well-Known Member
I'm only feeding them what they can use I've found they use more with led watt for watt.
Idk the reason for this nothing has changed except the lighting.
Ime more ec doesn't equal more weight health does, I can't force feed them they use what they use, trying to force feed ime ends up with burnt leafs and in turn not working at optimal for the duration of the crop.
Samwell Seed Well
Well-Known Member
Well i have 192 plants that have receieved a 3.0 ec for 6 weeks ...no burn.
Abiotic dmg is a plants response to a varrairing number of stimuli. EC, PH, light, temp...
And with LEDs i see more nutrient efficiency leading to protagonism. One nutrient due to both synthetic chelation and natural uptake effiency will naturally cuase an inballance due to avalability..
Having an adundance of avialability like i do, can invivte burn... bloom 1 being that. But that room has multiple issues from lights to nutrients to media and dry downs...not just one thing
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calvin.m16
Well-Known Member
I learned this too. I use the glass soil probe or BlueLabs Pulse Meter to tell the EC and feed accordingly. I've been noticing most plants tolerate & prefer in general:
1.0-1.4 EC CLONE
1.6-1.8 EC VEG
1.8-2.0 EC BLOOM
Above numbers are for an environment with:
1200-1300 PPM co2
1.2-1.4 VPD
600-700w LED lighting spaced 12-16" from canopy.
I had a Mandarin Sunset seedling from ETHOS that would literally eat everything I threw at it then some, at one point I was feeding it up to 3 EC and it would still drop EC at the rootzone and gobble it up within 24 hours. That was a record yielding plant for me. Unfortunately the bud was lacking in all aspects other than yield.
amneziaHaze
Well-Known Member
Does everybody here just blindly give 3ec and wait for plant to die or not?
I allways fought you give your plant food check ec and then tommorow you look is it lower or higher. And thats her number.
I allways fought you give your plant food check ec and then tommorow you look is it lower or higher. And thats her number.
calvin.m16
Well-Known Member
If your nutrients require 3.0 EC like Athena then your wasting your money and time IMO. I feed as low as 1.6 EC with MaxiBloom with 700 watt LEDs, 1000 PPM Co2, 80 F / 55% RH without issue. When I ran Athena I did have to use super high EC for the plants to not look like complete shit. I hate brand bashing but Athena really does suck and gives an illusion of being cheap when in reality you need to use 2x the product to get the same result as other brands like CYCO, General Hydroponics, Advanced Nutrients, House & Garden just to name a few.
I can say, I have used up to 3 EC but I think only with Athena, most nutrients you will FRY your plants going above 2.0-2.2 EC even if your growing 6 ft tall trees.
nxsov180db
Well-Known Member
This doesn't really make sense. All nutrients are the same although NPK ratio can vary a little. Athena bloom is close to the Lucas ratio (1:1:2), which MaxiBloom is as well.
nxsov180db
Well-Known Member
Ok, so after running the numbers, MaxiBloom has too much P. You wouldn't be able to run Maxibloom at 3.0ec, or even 2.5ec without a P toxicity. See, Athena at 3.0ec has a P of about 100ppm, P toxicity happens pretty quickly above 100ppm. To match the N and K of Athena at 3.0ec with Maxibloom your P would be around 210ppm, about double the max most weed can take. Just by looking at the elements Athena is a better choice in comparison to Maxibloom. What leads me to believe that you had to run the Athena at a so much higher ec than MaxiBloom to see the plants not look like shit would be the fact that Athena only has about half the Mg as MaxiBloom. Had you ran Athena at the same ec as your MaxiBloom with the addition of 1.5g Epsom per gallon you would have had similar results and possibly even better since the Athena has a tad bit more Ca. Athena even at 3.0 EC is only about 2/3 the Mg that I use. 60ppm vs 90ppm.
Kola_Kreator
Well-Known Member
This is really awesome information. Well done for taking the time and effort to learn the in and outs of nutrient formulation mate. It's def something I'd like to get my head around myself. I have plans to get away from hydro branded rip off bottles nutes and run soluble powders sourced from the agriculture market. But before I can do that I need to know how create a complete feed from several different products
That Lucas formula sounds like
nxsov180db
Well-Known Member
Any questions PM, its so easy.. once you get the hang of it you'll wonder why you didn't do it sooner..