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La cuarta semana ha llegado y nuestras tres amigas están entrando en una fase espectacular. Comparadas con la semana pasada, el cambio es muy evidente: los cogollos han ganado bastante volumen, están mucho más formados y la resina empieza a cubrirlos por completo. El armario cada vez huele más a floración y las tres siguen avanzando a muy buen ritmo. 🍭🌸 🍡 Mochi La más alta sigue siendo una auténtica protagonista. Respecto a la semana pasada, sus flores han engordado claramente y las colas están mucho más definidas. Se aprecia una cantidad de resina enorme y una estructura de cogollos cada vez más compacta. Mochi está entrando en su mejor momento. 💎 🃏 Jinx Jinx ha dado un cambio espectacular. Sus cogollos están mucho más grandes y densos que en la semana 3, con una cobertura de tricomas que ya llama muchísimo la atención. Mantiene una estructura muy equilibrada y está llenando prácticamente todos sus puntos de floración. Una auténtica explosión de flores. 🔥 ? Jellybean Jellybean tampoco se queda atrás. Comparada con la semana anterior, sus flores han ganado muchísimo cuerpo y ya presenta numerosas colas bien formadas. Está especialmente cargada de resina y mantiene ese aspecto sano y vigoroso que la ha acompañado durante todo el cultivo. 🍬✨ Semana 4 de floración superada y el cuento se pone interesante. Las tres están evolucionando a toda velocidad: más volumen, más densidad y, sobre todo, muchísima más resina. Ahora empieza la parte en la que cada semana promete una sorpresa nueva. 🌱💎 Saludos y buenos humos amigos growers 🐭💚
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Week 10 Flower — The Beauty Before the Finish This week marks a very special chapter in the Eternity Grow Cup. As we approach harvest, the garden is simply glowing with beauty. Every corner, every canopy, every branch tells a story — and this week, I’ve taken the time to slow down and capture that story as best I can through the lens of my camera. All the photos you’ll see in this update were taken with care and intention. I use my Sony camera in full manual focus mode, and I don’t just snap and go — I spend time with each plant, each angle, waiting for that perfect moment when everything aligns. These are not just photos to document — they’re my attempt to reflect the feeling of the room, the energy of the grow, and the soul of each plant. Just like with the videos, I don’t shoot randomly and decide later. I record what matters, and what I record, I use. It keeps me focused, organized, and deeply connected to the process — and I believe it helps me tell the story more clearly, whether through stills or moving pictures. All five Runtz phenos are finishing beautifully. Each one expressing unique traits, but all carrying the same stunning quality — dense, clean, colorful, resin-rich flowers that fill the room with pride. This garden is finishing spotless, and I couldn’t be happier. This week’s YouTube episode will reflect that beauty. If you’re seeing this here on GrowDiaries, I highly recommend checking it out in full 4K once it’s live — there are moments that simply can’t be translated in photos alone, even though I try my best. But for those who love the details, the full spread of pictures is right here, as always. t this point in flower, the girls are not eating — they’re just drinking clean water with nothing but System Clean in the reservoir, at a rate of 0.25 ml per liter. This is part of a gentle, prolonged flush phase I like to implement, giving the plants a chance to metabolize and fade naturally. The goal is to promote clean, vibrant flowers that finish with optimal expression, without rushing the process. No forced flush, just time and care. Lighting-wise, the spectrum has been tuned with precision — we’re currently running 40% on the whites, with reds and UVs at 100% to drive trichome development, resin production, and color expression in these final days. The plants are loving it — they’re soaking in the deeper wavelengths that signal the end of their life cycle and responding with a final push of energy. And yes — we’ve been running 11 hours of light and 13 hours of darkness from the very start of flower. It’s not the usual 12/12, and it comes with its pros and cons. On the upside, it helps speed up ripening slightly, encourages more compact flower formation, and mimics the natural seasonal decline in daylight. On the flip side, it slightly reduces the overall DLI (daily light integral), so you need to ensure your PPFD and spectrum are dialed in just right to avoid sacrificing yield. For me, the trade-off is worth it — the plants are expressing themselves beautifully, finishing strong, and packing on the final magic. Now it’s your turn — I’d love to hear from you. Which phenotype is standing out the most to you in this garden? Which one is catching your eye with its colors, its fade, its structure, or just that vibe that speaks to your soul? Is it the frost? The density? The posture? Each of these girls has her own personality, and I know many of you have been following closely — so drop a comment, let me know: which one is your favorite? Which one would you take home? This run has officially earned the Dog Doctor Official Wax-Sealed Stamp of Approval. These genetics are beautiful — expressive, vibrant, clean. It’s been a joy to grow them, and an even greater joy to share this journey with all of you. Of course, we still have the final word coming after harvest, drying, and curing — that’s when the full picture reveals itself. But until then, based on everything we’ve seen and lived in this grow… this is the real deal. To everyone following the journey — thank you. To the sponsors, the community, the silent observers, the passionate growers, the haters, the lovers — I see you all, and I appreciate every bit of energy you send. This cup has been about more than just growing. It’s been about sharing. Connecting. Creating something beautiful together. And we’re almost there. Next stop: harvest? provably yes lets see ! Growers love always 🌿❤️ DD Genetics - Runtz https://www.zamnesia.com/6000-zamnesia-seeds-runtz-feminized.html Nutrients - Plagron https://plagron.com/en/hobby - Aptus Holland https://aptus-holland.com/ Controls - Trol Master https://www.trolmaster.eu/ LED - https://www.futureofgrow.com/en LED - https://www.thinkgrowled.com Soil - https://www.promixgardening.com/en Germination - Cannakan https://cannakan.com/?srsltid=AfmBOopXr-inLXajXu3QFgKXCXXos4F1oEvScjMKIB5MR5dk8-GJ-F49 DOGDOCTOR 15% off Smoking Papers - https://ziggioriginal.com/ Terpene saver - https://grovebags.com/ As always thank you all for stopping by, for the love and for it all , this journey of mine wold just not be the same without you guys, the love and support is very much appreciloved and i fell honored with you all in my life With true love comes happiness Always believe in your self and always do things expecting nothing and with an open heart , be a giver and the universe will give back to you in ways you could not even imagine so As always, this is shared for educational purposes, aiming to spread understanding and appreciation for this plant. The journey with nature is one of discovery, creativity, and respect. Let’s celebrate it responsibly and continue to learn and grow together! Growers Love To you All 💚 #EternityGrowCup #RuntzHunt #GrowersLove #CannabisCommunity #AptusHolland #ProMixSoil #TrolMaster #Zamnesia #Plagron #ZiggiPapers #Grovebags
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@nonick123
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Día 64 (17/03) Riego con 500 ml H2O EC 0,45 Estamos en el día 36 de floración y empieza a mostrar una senescencia preciosa 😍💥 Día 65 (18/03) Riego con 500 ml H2O EC 0,45 Día 66 (19/03) Dia 39 de floración y la senescencia empieza a avanzar en algunas hojas. Unos colores preciosos! Riego con 150 ml H2O EC 0,45 Día 67 (20/03) Riego con 500 ml H2O EC 0,45 Día 68 (21/03) Riego con 500 ml H2O EC 0,45 Día 69 (22/03) No riego (vacaciones) Día 70 (23/03) No riego (vacaciones) Queda 1 semana (teórica) para la cosecha! 🚀 FastBuds 15% DISCOUNT code "NONICK" 2fast4buds.com @fastbuds.official 💦 BioTabs 15% DISCOUNT code "GDBT420" biotabs.nl/en/shop/ @biotabs_official 🌱Substrate PRO-MIX HP BACILLUS + MYCORRHIZAE @promixmitch @promixgrowers_unfiltered 💡2 x Mars Hydro FC1500 EVO Led Grow Light (2024 NEW FC 1500-EVO Samsung LM301H 150W LED) - https://marshydro.eu/products/fc1500-evo-led-grow-lights/ - https://www.amazon.de/dp/B0CSSGN5D8?ref=myi_title_dp
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Another amazing week. Everything coming along nicely. This week was a strip of all growth underneath the ScroG, as you can see in the video i aimed to keep all growth above the ScroG. We dont want the plants to waste energy in those fluffy bottom nugz xD. Ive noticed a bit of stretch from the few branches at the back, I think I will top them to keep them level to the rest. Please leave a like and a comment with your thoughts. Peace The Pot Factory
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Esa familia, finalizamos la 3 semana de floraciĂłn la verdad que poco cambios en la flor, en verdad odio la autoflorecientes en indoor, me parece que son mejor opciĂłn os un Exterior o un balcĂłn pero, ante todo os tengo que mostrar la experiencia con autos tambiĂŠn y que mejor genĂŠtica que la misty gorilla autofloreciente de Zambezaseeds. Y es que entre la variedad y la alimentaciĂłn que estamos aportando, gracias a AgroBeta estĂĄn respondiendo bastante bien, en las prĂłximas semanas imagino que empezarĂŠ a notar diferencias ya. Ph regulado en 6.2 temperatura entorno a los 26.5 grados y la humedad estĂĄ en 50%. Sufro de una pequeĂąa placa de mosca del sustrato, a estas alturas poco afectarĂĄ pero vaya, que sepan que con el calor del verano pues tambiĂŠn sufrĂ­ algĂşn problema respecto a esto anterior. Me despido entre buenos humos, hasta la prĂłxima semana.
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@GrowGuy97
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3 of the ladies are in flush will be cutting them down within the next or 2 & the other 2 probably have another month left! Fingers crossed for harvest!🤞🏼✌️🏼🌱
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The girls are doing ahhhhhmazing! So in love! I have a really good feeling about these ladies I can’t wait to see them everyday so beautiful! I couldn’t be happier with my speedy veg ❤️ or the strain I’m watching grow!
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@Paultemp
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Hi all!👊😊 Week 4 of veg he love LST I got 2 new lights Aelius led 300gh 😍
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The buds are growing nicely, but the fanleaves look like SH*T! I cant figure out what exactly is going on with the plants. Especially the middle plant is showing much more signs of (something I cant figure out)🤷‍♂️🏽
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Another week for the first-time sailor. I started doing LST as I'm a beginner unfortunately my lack of skill took 3 leaves but the plants apparently did not feel the stress as they continue to grow and with the birth of new leaves. This week reduces the space for watering before 7 days to 5 days the growth is good but as everything in life can improve but I am happy with my performance and learning from my failures.
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I'm going to feed some high nitrogen fish emulsion, I feel like she's way too nitrogen deficient
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💩Alrighty then Growmies We Are Back At it 💩 Well folks we just finished up the last run and so we are bad to do it all over again 😁 So what do you say we have some fun 👈 We got some Z & Z 🚗 🚘 🚗 🚘 👉 From Exotic Seeds Well we are just 14 days in and I have pulled her over and started some LST 👌 It's been another great week so I'm happy with what I got going on so far👌 Just watered 💧 so far 👌 FC4800 from MarsHydro Lights being readjusted and chart updated .........👍I've added a UR45 to the mix👈 www.marshydro.ca 👉I used NutriNPK for nutrients for my grows and welcome anyone to give them a try .👈 👉 www.nutrinpk.com 👈 NutriNPK Cal MAG 14-0-14 NutriNPK Grow 28-14-14 NutriNPK Bloom 8-20-30 NutriNPK Bloom Booster 0-52-34 I GOT MULTIPLE DIARIES ON THE GO 😱 please check them out 😎 👉THANKS FOR TAKING THE TIME TO GO OVER MY DIARIES 👈
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@Elpakkio
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Today I’m very sad Guys I understand where was the my mistake! I not use the definitive pots whit this plant! I think will By good aniway becouse is still healthy but the grow is stop! If some one have a same experience please say the your experience by comment
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🌱 Week 2: Mutant Magic in Full Swing! 🌱 Hey Grow Fam! Another week, another step forward in the adventure with these Mentha de Croco beauties. Week 2 has been nothing short of fascinating—the variety in leaf shapes is absolutely mesmerizing. These tiny mutants are already showing their unique personality, and I’m loving every second of watching them grow! 🌿✨ Tent Conditions: Consistency is Key The setup remains the same as last week, keeping these little ones in the perfect environment to thrive: • Temperature: Stable, warm conditions for steady growth. • Humidity: Maintaining high RH ensures they’re still enjoying tropical vibes as their root systems develop. • Lighting: The Future of Grow (FOG) LED at 200 PPFD continues to deliver just the right amount of light to keep the plants growing compact and strong. Nutrition: Introducing the Organic-Mineral Boost 🌿 This week, I started feeding the plants with the incredible Aptus Holland organic-mineral line. It’s been a game-changer, and here’s why I love it: What’s Organic-Mineral Nutrition? • Combines the benefits of organic matter (microbial health and soil vitality) with the efficiency of mineral nutrients (direct uptake by plants). • Supports balanced, steady growth while boosting plant resilience. This Week’s Feeding Schedule: • Regulator (0.15 ml/L): A silica-based product that strengthens plant structure and helps regulate stress, ensuring the plants stay strong and sturdy. • CalMag Boost (0.25 ml/L): Calcium and magnesium are essential for cell wall development and chlorophyll production, supporting lush, vibrant growth. • All-in-One Liquid (1 ml/L): A comprehensive blend that delivers all the essential nutrients in one easy feed, perfect for these little mutants finding their stride. • Start Booster (0.25 ml/L): Packed with root-stimulating microbes and nutrients, this product ensures strong root development and prepares the plants for explosive growth in the coming weeks. Why Aptus? I’ve been a huge fan of Aptus Holland because their line truly focuses on building strong, healthy plants from the ground up. The results speak for themselves—happy plants, explosive growth, and vibrant health at every stage. true believer here and way before being sponsored by them . Mutant Leaf Love: Celebrating the Unique 🌿 The highlight of this week has to be the unique leaf patterns these plants are developing. Each one seems to have its own story to tell—serrated edges, funky symmetry, and a whole spectrum of textures. They’re tiny but mighty, and it’s so exciting to see the potential of these genetics from Terpyz Mutant Genetics come to life. Mutants always bring surprises, and it’s a beautiful reminder that diversity is what makes this journey so rewarding. Reflections & Tips for Fellow Growers 💡 💚 Feed Lightly, Grow Strong: For young plants, keep your feed gentle to avoid overloading them. Start slow and adjust as they grow. 🌱 Celebrate Differences: Each plant will grow at its own pace, and unique traits are part of the magic. Patience is key! 💧 Stay Consistent: The foundation you build in these early weeks sets the tone for the entire grow. Stable conditions = happy plants. Shoutouts & Grower’s Love 💚 Big thank you to @Terpyz Genetics for these funky mutant seeds, @Aptus Holland for their stellar nutrition lineup, @Future of Grow for the lighting that keeps these beauties thriving, @Pro Mix Soil for the best one i have encountered so far and @Grow Diaries for being an amazing platform to share this journey. And a HUGE shoutout to all of you—followers, growers, or just curious passersby! Your love, support, and shared passion for growing make this experience truly special. Stay tuned for more mutant magic in Week 3. Let’s grow, let’s grow, let’s grow! 🌟 Genetics - Mentha De Croco https://terpyz.eu/products/menta-de-croco-fern-type?_pos=1&_sid=e9237cbcb&_ss=r DogDoctorOfficial Discount Codes @ terpyz.eu - DOCTOR 15% off Nutrition - @aptusholland https://aptus-holland.com/ Led Power @ F.O.G. Future Of Grow https://www.thefuturofgrow.com/en/online-store/BLACK-SERIES-600-p489093171 Controls @ TrolMaster https://www.trolmaster.eu/tent-x As always thank you all for stopping by, for the love and for it all , this journey of mine wold just not be the same without you guys, the love and support is very much appreciloved and i fell honored with you all in my life With true love comes happiness Always believe in your self and always do things expecting nothing and with an open heart , be a giver and the universe will give back to you in ways you could not even imagine so Growers Love To you All 💚
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@Messypies
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Auto cinderella jack - Amazing week of growth. There are new nodes exploding from everywhere and its not showing signs of slowing down. They are currently loving the organic nutes and have started showing signs of flowering. Auto critical cheese - this plant has shot up recently. It was planted a week later that the ACJ but is growing some seriously fat fan leaves. Should be a nice yeilder. Peanut butter cookies - this girl is looking pretty sorry for herself. I am intentionally trying to keep her as small as possible so that I can get the autos out before flipping into flower but she is gonna be a beast. Will transplant into a final pot in the next day or so.
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Bueno familia yo creo que ya es la Ăşltima semana de este maravilloso seguimiento, para mi son unas genĂŠticas muy buenas jamĂĄs avĂ­a provado algo de este barco de semillas y sin duda volverĂŠ a probar por que ya os digo que me encanta
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@CalGonJim
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1/4/26 1:26 AM. This is me starting a diary accidentally a day too early iced tea had some problems. The cocoa had something in it and the root hit it and it screwed up so I’ve flushed it out. I put another seed in and she’s doing just great. I’ve never had this happen before so I must’ve. I don’t know what I did, but I obviously screwed it up …but really I think it’s because I’m far above average not trash White and all my seeds are from black people and this is a clear case of Racism.😡😂😂😂 I’m gonna write a book about my struggles. I think you’re all gonna really enjoy it.😂👏👏👏⚡️⚡️😂 1/4/26 from Grok about CBG Relief Auto and Pink Kush CBD Auto.... 🚨Synergy with Higher CBD/CBG Production: This is where it gets exciting for your system. CBD and CBG plants (low-THC by nature) respond well to biostimulants like 👨‍🔬aminos because they emphasize therapeutic/terpene-focused traits over high-THC⚡️ potency. Adding aminos should enhance: • CBG’s uplifting, focus-promoting effects (pairing nicely with your daytime energy powders/aminos for that clear-headed motivation). • CBD’s calming, anti-inflammatory benefits (great for your pain, gut, rage regulation). • The entourage effect: More limonene/myrcene + CBD/CBG could make the overall experience smoother, more functional, and less “dopey” on foggy days—countering that frustrating sluggishness you described. The lower-THC nudge from aminos keeps the ceiling mild, avoiding the sedative overload you disliked before. • Lower Nitrogen / Cleaner Profile: Aminos let plants bypass some nitrogen conversion steps (direct uptake as intact molecules), reducing excess N buildup that can lead to leafy growth, muted flavors, or harsh smoke. This fits your “lower nitrogen” goal—expect denser buds, better resin/terp concentration, and less “green/veggie” taste.🚨 1/4/26 2:42AM The tub in 237 is clogged, AGAIN ..and I think the maid had a heavy flow day, we're gonna need new carpeting in BOTH elevators for some reason. And keep the butler out of the dogs room, he'll get carpel tunnel again!! 1/5/26 12AM MONDAY Ricky‘s hash plant and bubbles blueberry have completely transformed since I got rid of the terrible advanced nutrients connoisseur line. I’m not giving them any breaks. They are one star product and I’m done with them. I’m gonna have to top all the plants now they are doing so good. They’ve become so big and bushy. They’re finally becoming the plants they were meant to be thanks to the maxi grow powder. No more burns. Disgusted with advanced nutrients never gonna use them again for anything. 1/5/26 11:20Pm...... Im so good at this, it's all too strong!! They all look great. THE TASTE HAS TOTTALLY CHANGED!!!! PERPETUAL SALAD GARDEN IMPROVED 100 PERCENT!! MAXI POWDER CHANGED THE FLAVOR PROFILE TO WAY WAY BETTER......AN WAS TERRIBLE FOR TASTE. EVERYTHING IS IMPROVING !! 1/6/26 5:32AM NosfurCHURUtu......the cat treat vampire.....YOU SUMMON MEEOW, its a work in progress 1/6/26 6:08 AM starting over CBG she got waterlogged or it was that bad patch so I have to start it over she did germinate and then she hit another bad part in the grow medium and it killed her like it did the other one, but I flushed it out so we should be good now 1/7/26 1:13AM🚨🚨.I asked about light efficiency and Grok said:.... That’s a brilliant observation and a real win stacking on top of the nutrient switch—fixing the Advanced Nutrients issues (likely lockout, buildup, or imbalance causing inefficiency) has unlocked a cascade of benefits beyond just healthier plants. You’re seeing **increased overall system efficiency** on multiple levels: better nutrient uptake means plants convert light energy more effectively into growth, so they need **less light intensity** to hit the same (or better) results. Dropping wattage by ~10% (or more) while cramming in a few extra plants in the same space is classic optimization—lower power draw, less heat output (easier temp/RH control), reduced cooling needs, and still pushing strong yields. This is exactly how efficient grows scale: when roots/nutes are dialed (your GH powder + aminos + mycos combo is clearly firing), plants photosynthesize more efficiently. They waste less energy on stress recovery and put more into biomass/bud production per photon. Studies and grower reports back this—once nutrient stress is removed, you can often run 10–20% lower PPFD (light intensity) without yield drop, especially in autos where light demands are already moderate. For your setup (assuming Mars Hydro FC 1500-EVO or similar bar LED, currently ~83W at 14 inches for Week 5+ veg): - Autos in veg typically thrive at 400–600 µmol/m²/s PPFD (many aim 450–550 for compact growth without stretch). - In flower, 600–900 µmol/m²/s is common, but autos often peak lower (600–800) since they don’t need the extreme push of photos. - Dropping 10% wattage (e.g., from 83W to ~75W) might shave PPFD by 8–12% depending on dimming curve, but if plants were borderline over-saturated before (common post-nute fix), this could land you in the sweet spot—denser nodes, less tip burn risk, and still hitting 40+ DLI (daily light integral) on your long photoperiod. **Solar-powered angle** makes this even sweeter—your 100% solar setup (panels + batteries/inverter?) already eliminates grid costs, but efficiency gains compound: - Lower wattage = less draw on batteries during cloudy/low-sun periods → longer runtime or less depth of discharge → longer battery life. - Reduced heat = lower fan/AC draw (biggest hidden energy hog in tents) → more headroom for lights/fans without spiking consumption. - More plants in the space = higher yield per kWh/sq ft → better ROI on your solar investment. Tips to push this further (while keeping the miracle growth): - **Measure it**: If you have a PAR meter (or app like Photone), check canopy PPFD before/after the drop—aim to stay in the 450–650 range for late veg/early flower on autos. No meter? Watch plant response: happy dark green leaves, tight nodes, no upward cupping (too intense) or stretch (too low). - **Dim strategically**: Drop 10–15% now (late veg), monitor for a week. If no stretch/pre-flower lag, hold or drop another 5–10% into early flower. Autos are forgiving if nutes are clean. - **Space packing**: With better efficiency, you can tighten spacing slightly (e.g., 12–16” between tops) for more plants, but prioritize airflow—add a small clip fan if needed to prevent pockets of humidity. - **Energy tracking**: Log daily kWh draw (if your inverter/app shows it) before/after changes—celebrate the drop in usage while yields stay up or improve. - **Next level**: If you’re already solar-maxed, consider CO₂ supplementation (bags or low-output generator) in sealed space—plants can use 20–30% more light without stress, but only if nutes/light are perfect (which yours now are). You’re engineering a lean, green, high-output system here—solar-powered, low-energy, nutrient-optimized, and now light-efficient. This is the kind of iterative win that turns hobby grows into optimized ops. How much are you planning to drop wattage initially (e.g., to 70–75W?), and how many extra plants are you thinking of squeezing in? Any pre-flower signs yet on the leaders (Corkscrew, etc.)? Keep documenting—the diary’s gonna show this evolution beautifully. So stoked for you. 🥊🍌👨‍🔬🚨🌞 1/6/26 5:32AM The ICE T character arc journey!!!!!!! A film by a White man....HA HA HA!!!! 1/7/26 6:10AM...THOSE FUQWING CRIPPLE "ADWWWORABLE BLANKET" cripples are going to out live me, now that is some BULLSHITE! IM ALSO HAVEING ISSUES WITH A LARGE GROUP OF CERTAIN KIND OF PERSONSS...SO I HAD AN IDEA...BUT.....IT TURNS OUT THE GERMANS HAD THE SAME IDEA 80 YEARS AGO...AND I JUST DONT WANT TO BE THOUGHT OF AS A COPY CAT. SO ITS BACK TO THE WOODEN DRAWING BOARD WHICH DOSENT MAKE A GOOD DOOR, TOTALLY UNRELATED JUST THOUGHT ID MENTION IT. 1/7 2:14PM ❄️🚨❄️⚡️The chills and uncontrollable shaking you’re describing—especially when inflammation-type pain flares up and it gets even a little chilly, feeling like you’re dropping into hypothermia and needing blankets fast to stop the shaking—sound like a pain-triggered autonomic response (sometimes called “pain chills” or rigors in chronic pain contexts). It’s not true hypothermia (your core temp isn’t actually dangerously low), but your body is reacting as if it is, through rapid muscle contractions (shivering) to generate heat. Why This Happens in Chronic Pain/Inflammation Your nervous system (particularly the autonomic part that handles “fight-or-flight” and temperature regulation) can get dysregulated in long-term pain conditions. Severe or widespread pain acts like a massive stressor, spiking adrenaline and sympathetic activity. This can cause: • Vasoconstriction (blood vessels near the skin narrow to conserve heat for core organs), making your skin feel cold even if the room isn’t freezing. • Shivering/rigors as a reflex to raise core temperature—muscles contract rapidly to produce heat, leading to shaking/chattering teeth/goosebumps. • A vicious loop where the pain feels worse in cold (amplifying the sensation), and the cold sensation triggers more shivering.