Test FBA 2503 – 42Fast Buds 68 days from seed — and we’ve reached the final stage: harvest time! Although the plant didn’t grow very big, it truly impressed us — the buds are dense, large (as big as a fist!), and absolutely drenched in sticky resin. The pinkish hue of the buds gives this beauty an extra touch of elegance — she looks stunning! But the most striking thing is the smell. It’s incredibly strong, sharp, and long-lasting. Our girl has a seriously intense chemical scent — it fills the entire grow tent instantly and lingers for hours. Not for the faint of heart! From the beginning, we focused on giving her everything she needed: a well-balanced substrate, a stable environment, and, of course, proper nutrition. Huge thanks to Xpert Nutrients for their powerful line of fertilizers — they played a key role in helping this plant reach its full potential, delivering impressive trichome production, vibrant colors, and strong structure. And special thanks to 42Fast Buds for the opportunity to test this unique and powerful autoflower — it’s been an amazing experience! Harvest results coming soon — stay tuned!

Hi Growmies, This was her last week of heavy feeding. I have already decreased the nutes for the coming week and will probably start flushing her the week after. So that she should be finished by the end of the contest pretty much. Regardless of her age the rootball has shrunk only a little bit. I have also taken her out of the scrog to enable the canopy to open up further and allow more light penetration for the maturation of the buds. This worked actually very well, as the weight of the buds pull the plant open. Thanks for stepping by and until next week!

Handwatering is the best watering :)

Buds buds and more buds!

wowzers!! I think this might be the fattest auto i've ever grown lol well see when the weight comes of course but she has some thiiiiiick colas!!!! Seeing lots of trichs with mostly clear still so I have a feeling another 3-5 days until chop chop!!! she smells amazing!!! have a feeling shes gonna be a really nice smoke 😵

Week 8: Water and wait This Lady is SUCH a blast to watch!!!! Her giant colas and sugary orange nugs just sparkle with resin. The structure is GREAT for avoiding bud rot which would be my major concern here. She has been flushing for a week. I assume she has 1 or 2 more in her. Really excited to write this smoke report.

Week 5 of flowering for the three ladies went well. A couple of the hairs started turning orange and shriveling. Tricomb production is looking grand, smell just continues to grow stronger and stronger. Stinking the whole house up even with a 4” carbon filter and fan constantly scrubbing the closet. Ph fell down to the lower 6.1-6.2, plants started yellowing and loosing older fan leaves, could have something to do with them Inching closer to harvest time, also probably has something to do with the slight ph drop, either way sugar leaves, new growth, and bud is all thriving so as long as the problem doesn’t continue to get server I’m not worried about the plant using up nutrients and offing some at this point in time useless lower fan leaves. Popsicle cake is giving off a straight gas/diesel fuel smell. The tallest unknown plant is solid lemons and Kush, and the middle sized unknown plant has a semi sweet but yet gassy aroma coming off her. Very exciting leading into week 6 of flower!

Day 27- day 1 flower Flip to 12-12 Day 28-day 2 flower Calmag -0.8ml Coco A - 1.5 Coco B- 1.5 Roots -0.2 Day 29-Day 3 flower Calmag -0.8ml Coco A - 2.5 Coco B- 2.5 Active boost -2ml Roots -0.2 Day 30- Day 4 Watered Coco A - 2.5 Coco B- 2.5 Active boost -2ml Roots -0.2 Day 31–day 5 Watered Day 32– day 6 Watered Day33- day 7 Watered Day 34-8 Watered last night so nothing today Day35–9 Watered Day 36-10 Watered Day 37-11 No feed, Day 38–12 Fed 1.5L Day 39-13 Watered Day40-14 Fed pk Day 41-15 Fed 1.7 coco a 1.7 coco b 2 ml boost 1 ml Pk Day 42-16- started adding pk Fed Day 43-17 Fed Day 44-18 Fed 600 ml just before lights out 1L lights on Day 45-19 Fed 1.6 L Day 46-20 Fed 1.5L Day 47-21 Fed 1.5L Day48-22 signs of potassium deficiency so keeping the food levels up for few more days , started with light feeding but now doing heavy feed chart . -Starting to give off a berry and gas smell . Day48-23 Fed 2L She’s thirsty today . Usually start to see runoff after 1.2 Lbur nothing Ml/L Watered 2.5 coco a 2.5 cocoa 2 sumo boost 2ml by accident instead of 1 Day 49-24 Fed 1.5L Day 50-25 Skipped feed to try lower humidity Day 51 Fed 2 L but no run off . Think she’s thirsty from no water yesterday . Will do another 500 ml to see run off if not I’ll leave it at that .

1/12 4:14AM MONDAY!!!!!!!! CBG IS GOOD!1 LOWERD THE WATTAGE, EFFICIENCY IS GOOD. GREAT WHITE MYCO HAS INCREASED UPTAKE AND AND!!!! PHOTOSYNTHESIS EFFICIENCY ......FUCKING AWESOME 💪💪💪💪 1/12 4:47AM I asked GROK: are samsung leds on my mars hydro lights seem more efficient than the PPFD meter says, I lowered the lights again by a few watts? Yes, the **Samsung LM301H EVO diodes** in your Mars Hydro lights (likely an FC-E series like FC-E3000, FC-E4000, or similar) are among the most efficient horticultural LEDs available right now—individual diodes hit **3.14 μmol/J** efficacy, pushing the whole fixture to around **2.85–2.9 μmol/J** PPE (photosynthetic photon efficacy) in manufacturer specs and independent tests. That's top-tier for full-spectrum grow lights, meaning they convert more electrical power into usable plant photons than older diodes or cheaper LEDs. If they "seem more efficient than the PPFD meter says" (your plants thriving at lower wattage/height adjustments), that's actually common and not a contradiction—it's often the **real-world efficiency** shining through once nutes/stress are fixed. Here's why this happens and what your recent wattage drop (a few more watts lower) likely means: ### Why Samsung LM301H EVO Can "Seem" More Efficient Than Raw PPFD Readings Suggest - **High PPE + Uniform Distribution**: These diodes excel at producing photons in the PAR range (400–700nm) with minimal waste (heat/loss). Mars Hydro FC-EVOs achieve strong average PPFD (e.g., 750–1000+ μmol/m²/s in tests at recommended heights/power) with even spread—no hot spots wasting energy. When your nutes were suboptimal (Advanced Nutrients issues), plants couldn't fully use the light (wasted photons → stress, stretch, lower efficiency). Now dialed in (GH powder + aminos + mycos), they convert more of that PPFD into growth—making the light "feel" stronger/more efficient even if meter numbers stay the same or drop slightly. - **Meter Limitations & Calibration**: - Handheld PAR meters (especially cheap/older ones) can under-read full-spectrum LEDs like LM301H EVO (strong white + red enhancement). They often have poor spectral response to the exact mix, reading 10–30% low compared to pro tools (Apogee SQ-500) or calibrated apps. - If you're using an app like Photone (mentioned in your diary), it's generally more accurate for Samsung full-spectrum lights (especially on iPhone; Android varies but often close with diffuser/paper). Many growers report Photone matching or exceeding cheap handhelds on LM301H setups—sometimes showing higher effective PPFD than a basic meter implies. - Bottom line: Your plants are the ultimate meter. Thriving (miraculous growth, no burn/stress) at lower wattage means the effective usable PPFD is higher than a potentially under-reading meter suggests—efficiency win. ### Your Wattage Drop & What It Means Lowering by a few more watts (on top of the earlier ~10% drop) is smart and aligns with the efficiency gains: - Dimming on Mars Hydro FC series is **very linear**—tests show PPFD percentage tracks close to (or slightly above) the dimmer % because diodes run more efficiently at lower currents (less heat/loss). - Example: Dropping from 100% to 90% might only reduce PPFD by ~8–10%, not full 10%, due to that efficiency curve. - Your plants handling it (still "miraculously better") without stretch or pale leaves confirms the sweet spot: likely 450–650 μmol/m²/s veg/late veg range now, with room to push if pistils emerge. - Solar bonus: Every watt saved = less battery drain on cloudy days, cooler tent (less fan/AC draw), and more headroom for extra plants without spiking consumption. **Practical next steps**: - Recheck PPFD (if using Photone/handheld): Average multiple canopy spots at current height/power—aim 450–600 for late veg autos, 600–800 early flower. - Watch response: If nodes stay tight/dark green/no cupping, you can drop another 5% or lower height slightly for denser canopy. - Log kWh if your inverter shows it—track the drop to celebrate the savings. - If meter still "under-says" vs. plant performance, trust the plants more—Samsung EVOs are proven beasts when the rest of the grow is dialed. This is textbook optimization: nute fix → better photon use → lower power for same/better results → solar efficiency skyrockets. You're building a truly lean system. How low are you at now (e.g., 70–75W total?)? Any pistils or new growth explosions today? Keep the momentum—it's paying off big. 🥊🍌👨‍🔬🚨🌞 1/13/26 7:47AM BRUTAL WEEK FOR THE MOP AND BUCKET GUYS AT MUDRUROS COMPOUND 1/13, 11:22 AM banana purple punch auto RF three is doing really great. I haven’t really needed to do anything. I decided not to top. I didn’t want to do anything except light stress training. I think she’s gonna turn out just great. Her stock is one of the thickest. She’s just perfect.😍😍😍

Esta semana el bebé está demostrando ser muy resistente, tengo problemas de humedad por la noche pero no puedo mantener encendido el ventilador por razones obvias. Durante las horas de luz la humedad es de alrededor del 60/65%. A pesar de todo, las flores se van agrandando poco a poco, tardarán algunas semanas más ..

Hello everyone! Welcome to my Tent-X Ultimate Grow Challenge diary. 💪 I'm germinating 2 seeds from every of the selected cultivars on paper towels: 👉 Strawberry Cough (Dutch Passion) 👉 Mimozz (Perfect Tree) 👉 Slurricane (Advanced Seeds) 👉 Cherry Atomic Sledgehammer (Welcome To The GrowTent) Did not have much success this time - germination rate was just over 60% - my worst in years. But still - I'll get enough plants for my tent - I always try to sprout 200% of what I really need, for ocasions like this one. 😎 After they germinated I moved sprouts to easy plugs - which is wher they normally start they life (I usually ommit paper towel step and go straight into plugs). First time in years I'm really having problems with germination. The one Slurricane that did germinate seems to have broken growth cone or something - it is no growing at all. Mimozz seems like it wants to die so it probably will... I did drop one more seed just to be sure I have at least 4 plants: 👉 Grandpa's Cookies #6 S1 (ETHOS Genetics) More updates coming soon 👋 Thank you, come again! 😅

All have started flower just under 2foot tall light adjusted and pH corrected at start of week hopefully bounch BKK 19june

Hello my friends, ...April 11, 2022....Day N°30... Beginning of the fifth week of growth for my three Feminized Watermelon Candy. There are beautiful, the topping working well, the very small plant seems alive..💪 www.zamnesia.com www.mars-hydro.com Thank you very much for passing by. Wish you only the best with your green projects, peace. See you soon 💨💨💨

Fast version B is doing good. She had a solution change today. She us just vegging along. No issues at the moment. Thank you Medic Grow, Dutch Passion, SSSC, and Athena nutrition. 🤜🏻🤛🏻🌱🌱🌱 Thank you grow diaries community for the 👇likes👇, follows, comments, and subscriptions on my YouTube channel👇. ❄️🌱🍻 Happy Growing 🌱🌱🌱 https://youtube.com/channel/UCAhN7yRzWLpcaRHhMIQ7X4g.

Week 7 it’s looking nice. Already flush let’s wait one more week or 2 and chop chop…

Getting close harvest!! The fan leaves 🍃 started releasing nitrogen and buds are starting to ripe I have have decreased amount of nutrients since she’s getting closer to harvest I’ll be watering her with water to remove any excess nutrients buildup from the bottom and to allow her to take the rest of nutrients left till her times comes.. I also did not add plant Height because I had done LST on her so I will be hard to know exact Height on mine

My ladies are growing fast, except Gelato, which is a little smaller. But she looks fine to me. I’m awaiting them to stretch a little bit next week.