Glad I found this thread because it helps solve a mystery about my plants.
These are from "Original Glue" seeds which, I just learned, are the new name for Gorilla Glue after
a lawsuit. GG works for me.
I bought a pack of seeds from Nirvana in 2022 and had three left over so I popped three seeds in October 2024. I've tried growing two plants in my 2' x 4' tent and I repeatedly end up with what I call a "Twinz" grow, after the movie with Schwarzenegger and de Vito. It was only this week that I learned why that would happen, thanks to chatGPT. Even though the res holds 28 gallons, according to chatGPT, they get into a dog fight (well, that's how I interpreted it) and there will always be a dominant plant.
Expecting that I'd end up with one big one little, I cut the branches off of the left side off of Erica in week three. I also managed to break off two of Donna's branches over the course of the grow. That's why there are no colas on the left side of Donna.
I name all of my plants, going down the phonetic alphabet, after women. I'm 68 years old and do two grows a year so rough math says that I'll be done before I run out of letters.
I grow in high temps (up to 85°) in veg to build out the canopy but keep temps <=78° in flower. That's based on the advice from Mitch Westmoreland, a PhD student under Bruce Bugbee. As of last year, he's now Dr. Mitch. I'm also feed my plants well and end up getting them to ~1kµmol by day 35 and then going to 1000-1100µmol in flower. If you've seen my (receptive, lengthy) postings here on RIU and on another cannabis site, you've seen my arguments where I share research. These pictures are my real world results after applying that research. I've been growing that way since my third grow (2022) and I'm getting the expected results.
I use AC Infnity gear including fans (tent and inline) their Controller 69 Pro, the heater, and a humidifier. The sensor on the right is a Pulse sensor, from my pre-AC Infinity days. VPD is standard 0.8, 1.0, 1.2-1.5. All standard stuff. Defol is to thin out the really thick canopy that grows under the veg light but after that, I just get rid of the "larf makers".
And, yes, there are "shades" around the light bars. The Growcraft was designed in 2019 and it doesn't have the nice even PPFD map of newer lights so I wrap bond paper around the light bars and slide the left or right to get the PPFD values I want. I use an Apogee to measure light.
A question that I've had is are these plants fox tailing? After watching
a video by a researcher at Fluence, I'd concluded that growing at 1100± had caused the "protuberances" as I called them ("horns" as another member here at RIU gently bitch slapped me with) but, looking at this thread, I don't think that's the case.
From what I can see, it looks like the horns that are protruding from the tops of colas in GG are just part of how GG grows.
The plants were grown using a Vipar XS 1500 with a Rapid LED Royal Blue puck for the first little while. I swapped those lights out for a Growcraft X3 veg light until flip (day42±) and then ran the Growcraft X3 flower light. I added the Spider GlowR80's when I got them in late November (IIRC). When the colas in the back got really tall, I couldn't keep the "front row" above 600µmol or so, so I fired up my 2020 Mars SP3000 light. When Donna outgrew Erica, I gave her the Vipar.
It's a hydro grow, with a res that holds 28 gallons, Jacks 3-2-1 for RO, same formula drop to chop running EC 0.8 in early veg, 1.2 in veg, and 1.8 in flower. No "bloom booster" though I do use silica throughout the grow. Silican makes the branches very strong, to support the weight of the buds, but it also makes them stiff, which is one reason by I ended up snapping off a couple of branches.
Tent can view with the humidifier running. The Glow R80's were just what I needed.
The Mars SP 3000 on a clothing dolly.
The good quality stuff in the Koolatraon that even I could "build" thanks to the excellent thread here on RIU.
Big, ugly buds.
I did almost nothing to improve the yield from Erica. She got widely ranging amounts of light, at times <1200µmol in some parts but ~800-900 overall. He buds weren't much to talk about. Donna did a lot better, even though two branches were…"missing".
Daily light
Light valves from day 80. Donna's values in columns 1 and 2, just three samples for Erica.
Last summer, I spent some time trying to find a replacement for my Growcraft and came up short. When someone suggest supplemental lights, I found the R80's and they're exactly what I needed. With the R80's, I'm over 50% red (660) and the percentage of blue drops to ~15%. That's still too high for optimal yield but I have some ideas about further improvements.
In addition to increasing the % of red, the R80's, which run 80 watts, allowed me to drop the wattage on the Growcraft by about 120-140 watts. It's not the savings in electricity, though that is a factor, but, because the R80's are all red diodes, they're very electrically efficient so I'm dropping wattage and reducing heat by 2°. That's a factor in flower, especially at 12-14" hang height.
The optimal set up for a 2' x 4' (and also for a 4' x 4') would be the Spider G/SE4500 + the R80's. I've had chatGPT to spectral analysis of a few different sets of lights and that combo is nothing short of superb. It would only be ~$225 for the new light and I might pull the trigger on that before my next grow (September, when the temps start to drop here in Southern California) but, as fast as the light market is moving, there might be something even better coming out.