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pun intended

thanks. yeah that is a total bullshit spec. lol, and it's not 4, it's 3.75 lol not actually 3.7461599999

what is the g in g/watt?

ok good. back to pot talk. thank you

so do you cut away the node 1 above it so it gets more light? this looks like fun.

It's my first time growing 4play and I only got males. Any thoughts on what it's pollen might bring to a cross? It would help me decide what to chuck it on.

My guess is you need 0.8 vpd. Look up vpd. where's that there vpd chart? here's one. https://vpdchart.com/#C,1,3,3,0 Only problem is it's in C. 37F is ...3C you need to dehumidify down to 1% humidity at 37. Good luck with that. Say you can heat it to 10C=50F. Now you need 35%...

I don't think Malawi will be as much of a problem. I think it is a hardy one. I'm not sure why sand is good but that was suggested earlier so I'm taking the suggestion. Good question. I'm still worried about my sand being right but what I had extra was called leveling sand so we'll see.

I don't have a pure landrace sativa going now but started a cross that is probably 90% sativa. The mother was a 100% real finicky 25 week B that ended bad, but I managed to get seeds from her. I added 30% sand to the mix which is already a new one I am trying which I made less hot but with...

Thanks for sharing! What was that clear dome originally? Fits perfectly.

I'm trying to watch this more closely at the higher temps (70F) too in the future. Seems like 0.4 vpd is too low and slow. @ 70F that is 80%H. 0.6 also, @70F that is 75H. I've probably been there at the start. Does anyone know what oxygen's role is in it? I'd think actually air movement...

Cool, never heard of shade avoidance syndrome or the term horticentric. I am wondering is that a typo or what do you mean "un lanace"?

All good points. Another reason to leave them is they can help you identify nutrient problems. Yellow leaves can be normal, but can also be due to issues such as nutrient deficiency or ph imbalance. If there is a problem and you cut them off, then the problem would likely migrate to other...

Yes, I think light makers are very liberal with the term full spectrum. And leds dont seem full at all. They just combine a few color lights which the color is actually spread a bit around a wavelength and they kind of overlap to create a wider spectrum but full would be flat all the way...

Interesting. Has me thinking how plants evolve like further off from equator spring would actually shift light more to red side I think all other things being equal, but blue would be increasing every day. But all else is not equal, because rain clouds in spring diffuse the light color and I...

I'm just learning here too, but it might be the proportion of red to blue, or red to green, etc. So you may want some red but not a majority of red. It probably depends a little on the plant too. Like equatorial sativas may be even worse under higher proportion of red for young plants, which...

So that is a lot higher in the red side. Maybe you're right about that being the problem.

If this is the case, the 3 options of Barinha led full spectrum have more proportion of red to blue per the link above. But it seems lots of different charts for fluorescent spectrum. Is the above specifically for a Barinha? Just checking, because if I search a general descriptor like 6500k...

They show 3 kinds of Full Spectrum LED T8's here: https://barrina-led.com/products/t8-led-grow-light-3ft-30w-full-spectrum-linkable-reflector-design-6-packs-qi30 do you know which one you have? Yellow color, 5000k white, or pinkish white?

These are 30 w, he said he had 24 w, same? @Gsplover11, how many watt total are you 6500k that these plants prefer? It's hard to understand the problem given you said you have 48w of the led T8, but you didn't say how many watts of the fluorescents.