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How much light can I give them at this stage? I trying to give them between 600 and 1000 ppfd and they are on a 20/4 cycle. Can I give them the maximum light if I provide all the nutrients and water they need?

So I gave them 4/5 (40ml per 10l of water) of the recommended dosage of the bloom nutes. I will buy some calmag to have it ready if needed. I read that P deficiency can also bring a cal/mag deficiency with it, because they are somewhat interdependent. The pics are from day 43.

I read that P deficiency also bring calcium and/or magnesium deficiency with it? Do I need to add calmag or is the calcium and magnesium enough, wich is included in the products that I use? I still have Bloom Nutes and Phosphor Plus.

Hey thank you for your input. Looks like you were right. How do you recommend I proceed?

I don't think it is N toxicity anymore. The tips are not burned and no dark green. I suspect heavy P deficiency since all of them are flowering intensly and I was too light on the nutes while giving a lot of water and light.

no, but there is calcium and magnesium in the tnt booster nutrients, I don't know how much though..

still some nice flowering : )

Hey big update, so it is day 39 now and it had severe yellowing and wilting on the gorilla glue plants. At this point every plant is showing the same symptoms: yellowing with brown spots on the upper and middle leaves. I gave them some veg nutes Hesi Tnt Complex with only 1/4 of the recommended...

Hey thanks for the replys! I decided to give a them a light flush (about 10l with a ph of 6.5) and turned off the vent for a couple of days. Also switched the intake/exhaust to full power (from 50%) They bounced back really nice. So now they are exactly 1 month old. How should I proceed with...

ah interesting, yes there is a big ventilator in there that is rotating back and forward (see picture) should I turn it off and only rely on a little clip ventilator for now?

Arent those signs of a nitrogen toxicity? I kinda paranoid when it comes to overfeeding, since I am also seeing burned tips on the Amensia Haze (last pic) Temperatures are kinda stable, sometimes its gets cold when I open a window in the room where the tent is located. At night it get below...

I water, when it is dry about 2 inches (5cm) deep in the soil. About 1 liter every 5 days or so.

Hi Guys, Setup: 4x4 (1,2m x 1,2m) Tent 480w full spectrum quantum board (hlg v550) 20/4 cycle 23-26 celsius humidity 60-70% 3 x Blueberry automatic 3 x Amnesia Haze automatic 3 x Gorilla Glue automatic Soil: biobizz light mix 26 days old I gave them some root stimulants, enzymes and Vitamines...

Hello, newbie with a quick question here. Im starting my first budget grow (4x4) I really want to go down the LED path instead of HPS. After some research I will probably buy the "HLG 550 V3 480W Samsung LM301H LED Grow Light" from Kingbrite What Option do you guys recommend? 2700K 3000K 3500K...