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yeah magnesium and calcium are the first elements to be locked out when pH stays too low for too long.

They're both good. If you're talking about multiple board arrays, such as the HLG scorpion. Single board lamps are old school, dated technology.

GG4?

nah never been ripped off. even when I sent cash in an envelope. growers are seemingly pretty honest people in my experience.

https://cre.science/en/about/ "MAKEING THE DREAM OF ABSOLUTE CONTROL COME REAL" "GOD MODE ON" Always is so funny when snake oil salesmanship is improperly translated into English. Don't usually see this from Germany though. As a German myself I'd like to apologize. I think this is just one...

who cares if your plants are male or female. it's 2022. just let them be.

Yikes, ghosting their customers. Somebody is paying to keep the URL hosted at least. Bizarre.

people prefer to save 50 bucks and support shenzhen knockoffs

good question. I remember when the far red thread was the most poppin' thread in this forum. personally I never adopted it. Out of laziness and contentment. I did however hop on the UV bandwagon. Used reptile bulbs for a couple years. Then stopped ordering them. Over time my grow has grossly...

years ago I grew with 3500k 90 cri cobs and now I grow with 4000k+630+660 qbs honestly minimal difference I wouldn't think anything of switching back

mag gets locked out because people love pH down if you pH to 6.5 you won't need epsom salt or any other amendment just your regular old cannabis nutrients

I would try to have the lights at full intensity over the course of a few days, i think 2 weeks is too long and youd be missing out on some yield

The question isn't how many plants under how many lights, the question is how many square feet of canopy you can grow, at the distance from which your lights create and even PAR footprint. I grow in a 4x4. No matter if I have 1 light or 10 lights, I will always be at 500 watts. No matter if I...

obligatory "dont touch it then!" post

I agree with you that adding more lower powered LEDs is beneficial up until the point where you have a very even overall intensity across the canopy. But beyond that, I disagree with any benefit of adding more sources of light and running them at lower intensity. Once you have enough, there is a...

Spot on. Pretty much what I was trying to say by the answer being something in between. For my grow, I try to have 1) completely even par map at the correct intensity, 2) the fewest number of fixtures ran as intensely as possible and as close to the canopy as possible BUT WHICH still achieves a...

key to understanding "penetration" as it relates to indoor grow lights is understanding how light loving plants evolved strategies overtime to maximize photosynthesis under a single intense light source. one way they do this is phototropism, another way is the STACKING of THYLAKOIDS into GRANUM...

I think I would go with the top shooter

i dont grow lettuce but i've dabbled in some hydrponic jalepeno/habenero/ghost peppers. don't have any going at the moment bit this thread has me feeling inspried