🎥 My Week 3 Grow Log: Starting the Mainlining Process Introduction & Timing Whats Going On Growmies !!! welcome back to the 2025 Winter Grow! This week marks a really exciting milestone because the Special Kush 1 is finally ready for its first major structural training. We’re currently in Week 3 of the vegetative stage, and the plant has gotten big and healthy enough to handle some High-Stress Training (HST). The Main Goal: Mainlining My focus this session was to initiate mainlining. For those who don't know, this is the technique I use to create a perfectly balanced, symmetrical canopy, which should lead to much bigger and more uniform colas later on. This is where we lay the foundation for maximizing our final yield. The Steps I Took (Topping) Selection: I examined the plant and chose the perfect spot for the cut. I decided on the third node (counting from the bottom) as the anchor point for the manifold. The Cut (Topping): I carefully took my sterilized shears and topped the plant, removing the entire top growth tip (the apical meristem). This was done right above the selected third node. Redirection: Removing that main growth tip gets rid of apical dominance. Now, all of the plant’s energy will be diverted equally into the two main side branches growing out of that third node. These two branches are what will form the central "Y" shape of the manifold. The Clean-Up (Pruning) Lower Growth Removal: To ensure every bit of energy goes to those two future main colas, I systematically removed all of the lower growth. This included all the secondary growth tips and fan leaves from the first and second nodes. The New Structure: After the trimming, the plant now has a clean, bare stem leading up to the two chosen branches at the third node. This is the official "beginning of the mainlining" process. Next Steps The plant will now focus on recovering and growing those two new main branches. In the next few days, I'll probably be tying those two branches down gently to keep them level and open up the center (that's the Low-Stress Training part of mainlining). I'm really happy with how the first cut went. Stay tuned for the next part where we continue to shape this manifold! My Week 3 Grow Log: Precision Nutrient Feeding Part 1: The Nutrient Mix and Strength Check Water Base: I started with my baseline water and made sure it was ready for mixing. The Flora Series Mix (Per Gallon): I carefully measured out the General Hydroponics Flora Series nutrients, following my specific Week 3 veg schedule: FloraMicro: 4.5 ml/gal (This provides essential micro-elements and buffers the solution. FloraGrow: 6.1 ml/gal (This is the primary source of Nitrogen (N) for rapid leaf and stem growth.) FloraBloom: 3.0 ml/gal (A smaller dose is included to ensure all necessary P/K elements are present, even in veg.) CalMag Boost: Crucially, I added 1.9 ml/gal of CalMag. Motivation: This ensures the plant has enough Calcium and Magnesium to prevent deficiencies and handle the increased light intensity, especially as it recovers from stress. Part 2: pH Adjustment and Application The Critical pH Check: I tested the pH of the nutrient solution. Motivation: Nutrients are only available to the roots within a specific pH window. I adjusted the mix using pH down (as is usually the case with the Flora Series) until the solution was dialed in between 6.0-6.5 for optimal uptake. The Watering Technique: I slowly and evenly applied the nutrient solution to the container, making sure the entire medium was saturated. Run-off Check (The Final Step): The most important part of this session was checking the run-off. By testing the run-off EC and pH, I confirmed that the root zone is healthy, that the plant is taking up food, and that old salts aren't building up in the container. Summary of Results Everything looks good! With the perfectly balanced and measured nutrient cocktail, the Special Kush 1 now has the necessary fuel (especially the high nitrogen from the 6.1 ml/gal FloraGrow) to heal quickly and push those two newly topped branches into strong growth, setting us up for success with the manifold!