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I run veg plants at 16/8 and make sure the lights are at full power by the time I flip. I just flip to 12/12 and lose 4 hours from one day to the next. No gradual reduction for flower flip. For the flower period, the daytime hours get reduced gradually from 12/12 down to 10/14 (usually starting...

I've dropped a link to the studies I’m referring to from a previous post of mine. click here ———> LINK TO STUDIES I have only linked studies done on cannabis (some hemp, some drug type). These studies use cuttings from the same genetic stock ( some use multiple strains, tested different ways)...

Very few studies from back then (if any) were testing secondary metabolite production. Today they are, and results show significant differences in secondary metabolite production between different spectrums. I think we can all agree that cannabis is a high light loving plant, and that increasing...

I’ve posted about this a bunch in other threads already, but green wavelengths “penetrate” (absorbed photons) deeper into both leaf tissue and deeper into the inner (lower) canopy, than blue or red wavelengths. In leaf tissue, green light absorption is throughout the depth of the leaf tissue...

You can treat it however you want, but it’s still primarily a coco/perlite mix with a dash of forest humus and EW Castings. That means 50-60% of your media likely has a K & Na imbalance and will have more difficulty holding on to Ca and Mg due to this competitive nature. This means your base...

Sounds like a cation imbalance in your coco. Potassium (K) and Sodium (Na) are highly competitive with Ca and Mg, and coco coir happens to naturally come loaded with K and Na. It’s usually why coco has to be buffered with calcium prior to use. This seems to be a more prevalent issue with people...

It was actually from this video starting at 13:00 minutes in where he’s talking about it. Granted the video is 5 years old, he makes a statement in the migro interview from earlier this year basically telling people to prioritize electrical efficiency over spectrum, but that misses the point of...

Back to the topic of lighting spectrum and intensity effects on quality… Many people have cited Dr. Bruce Bugbee & Mitch Westmoreland talking about the effects of light spectrum on secondary metabolites, or the lack there of… I just watched the Bugbee/Migro podcast from earlier this year where...

Sorry to see you get discouraged egregory. This forum can certainly get off track and can also be a mean place sometimes. That said, some of the most insightful envelope-pushing threads I’ve seen here were riddled with trolls, name calling, and bullying. Those were the good ol’ days...

I’m not sure we were both saying the same thing, but it gave me the chance to illustrate my thought and it sounds like you have seen the effect in action. That’s all I was getting at, was that with more quantity of individual point sources (chips), depending on spacing, power, etc. you would...

No, I wouldn’t believe the opposite. Here is a quick little blurb from Google AI that is worded quite nicely regarding how the inverse square law works in regards to multiple light sources. “When multiple light sources overlap, the inverse square law applies to each individual source, meaning...

This is why strategic defoliation is important as well. You could always add some side/inter-canopy lighting if you were concerned with lower bud yield. But really, training the plants for more tops early on is your best bet, regardless of your light fixture. I would guess fixtures with higher...

Geekbeast Pro Lumatek 3.1 zeus

The only potential downside I could see to the geekbeast is there seems to be potentially large spike of UV that the spectrum graph doesn’t fully illustrate and a higher percentage of blue light relative to the lumatek. I would be concerned about how much UV exposure the plants were receiving.

House & Garden products are “absolutely crucial” additives for growing the finest weed, lol?? It’s Potassium Phosphate and Sodium Sulfate. Typical pk booster with added sodium. Why would anyone want to add sodium to their plants the last 3 weeks of flower? Why not use potassium sulfate and...

I use a central reservoir (25 gal insulated cooler), a water chiller, and 2 radiators for my climate control. This allows me to keep my 4’ x 8’ tent sealed, closed loop and I can supplement with CO2 without it just dissipating into outside air. Costs more than a split unit, but is more...

I’ve seen you mention this a few times, but would you happen to have a site or source for this information, even personal anecdotal experience? From what I’ve read, green light still plays a role in secondary metabolite synthesis albeit less than red and blue wavelengths. While I personally...

I get condensation on uninsulated lines with 56F water flowing in a room with 75F ambient air temps, and that’s outside of my grow. If it was inside my warm humid grow room it would condensate like a fire sprinkler. I’m not sayin that you would water cool your lights with that cool of a water...

It’s a cool idea, but I would be worried about condensation accumulating on your cooling pipes/heat sinks in your grow room. I’m guessing you would exchange the heat outside of the grow area, but the heat sinking taking place inside the grow would likely get drippy with condensation, without...

I ramp them up to full power gradually during veg so they are at full power day 1 of flower. And my environment setup is pretty dialed. My tent is only 6’ tall so I keep the lights at full height and let the plants grow up towards them.