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I appreciate the measured responses. Thank you. RE what light to use? I used the R80's because I've used them in previous grows as canopy lighting. And, given that I'm wrestling with temperature and RH in my current grow, I might go back to that configuration. The R80's on top of the canopy...

UCL is an interesting addition to growing cannabis and can be a valuable addition to the toolbox. Like everything else in the grow environment, "it depends". The best insight into UCL that I've found is in this video by Dr. Josh Hawley who's the head scientist at Fluence. Hawley's part of the...

Some feedback and advice? The SF1000 is a 100 watt light. Input wattage can be used as a rough guideline and 30 watts per square foot is about the minimum with 40 watts being enough to get the most out of a cannabis plant for most grows. 6500lux is low light. If you grow seedlings at that...

Interesting that you're using AI. I just started using Grok and chatGPT for on this topic a couple of weeks ago and I've found both to be helpful. Having said that, it's good to get them to cite the sources for their analyses because they only "know" what's fed into them. My experience has...

That's a pretty broad generalization and when I check out your postings on other threads, I see that you do paint in broad strokes. I don't post here much, perhaps that's due to the responses to my earlier postings in this thread. I simply don't recall why, to be frank. My impressions are...

Wow, it's been a long time! I've run autos and photos in the interim and I've seen that in the Gorilla Glue based cultivars. I haven't seen it in autos specifically. You've grow 6000 autos? Wow. That's amazing. I only do one (or two) plants at a time and can't grow in the summer because of the...

A lot of growers DIY with Rubbermaid totes. Best of luck with your project!

A larger bucket has more room for roots and there's also the fact that the larger bucket will be far more stable than a smaller bucket in terms of in terms of pH and EC changes. A larger bucket will also mean that you don't have to top off as often. A three gallon bucket ≠ 3 gallons of nutes...

Another vote for Jack's 3-2-1. Same 18± chemicals as every other nutrient manufacturer and you can just mix your own and keep it in the pretty bottles. My res holds 28 gallons and it works out to just under 4¢ per gallon with Jacks.

Agree with @Glomus on both points — healthy plant and needs more light. Cannabis will grow in light levels between ~60µmol and "800-1000"µmol. Growers generally go with 300 in seedling, 300-600 in veg, and >600 in flower. With that light at 26" and 28% the plant is getting very little light...

Your plants look really good regardless of having only 200 watts in the tent. A hang height increases, PPFD drops but the PPFD maps evens out. Check the PPFD map of any manufacturer/vendor and you'll see the pattern. I tested Photone when I was named Korona and it is accurate for some iPhone...

If you move them together, you won't have as much light drop of as you have now. Look at the PAR map on the SF site and you'll see that there a big difference between the value in the center and the values on the periphery. If you move the light closer together , the light cast will merge and...

Doesn't bother me in the least. I don't doubt that you're well intended but you're logically clumsy. Good example - Jacks sells nutrients that sell under the name of a "3-2-1" formulation which is based on the following number of grams per gallon - Part A 3.79, Part B 2.52, and Epsom salts at...

Why the ad hominem. You opened your statement with some that was pretty harsh. That set the tone but I put that aside. You've made statements that indicate either a brain cramp (my thinking) or that really don't know that topping removes the apical cola, and then you tell me that it was over fed...

Funny, you sound very credible but you're wrong on a number of counts. "I am really not impressed by your work." what an obnoxious lead in. It really poisons the rest of what you've written. When a plant is topped there is no central cola - so do I think that you have any idea of what you're...

Looks good! Two numbers that I use - the hourly constant is 0.036. PPFD * 0.036 * hours = DLI Also, 100µmols for 20 hours is 7.2 mols so if you're reading, say, 600 µmols, that's a DLI of about 43. 650 µmols is 600 *7.2 and then add 3.6, etc. etc. "trellis" - I didn't use a trellis on my...

If you have questions about the plant biology aspects of my posting or can make constructive criticisms, that would be great. If you want to check my grow journals, log in to 420magazine.com. I'm using the same screen name there so it will be easy to check things out. "But each plant is...

Agree completely. I'm trying to get my canopy to be flat. That would make things much easier. :-)

You hit it on the head. I've tested Korona/Photone (won't use it) and have traded emails with their programmer (I've been a professional programmer for > 30 years). Earlier this year, I emailed Dominik and asked him where he got the info for the light charts. At the time, they didn't have...

Hmm… Light travels in straight lines (unless you're talking about it moving through curved space). Photons, which have different energy levels, lose energy any non-vacuum medium. Plants in low light environments will tend to stretch. Plants in high light environments will tend not to stretch...