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Hello! I'm a bit curious about the types of media (rock wool from Grodan, coco coir, etc) available to grow Marijuana, so I have a few questions! What type of growing media do you use and why? For Grodan's products or other types of rock/mineral wool, what issues have you come across? How do you dispose the growing media when you’re done? If you use mineral wool, what percentage of your cost goes into buying mineral wool Hoping to hear from someone!
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Hello everyone! This is my first grow journal. For various reasons I'm starting it a little late (2 weeks in flowering), but hey, it's better late than never. This is my first grow using COCO as a substrate, so I was bound to make some mistakes. There were some PH fluctuations in the vegetative stage due to uncalibrated PH meter, but everything seems far gone now . This is also the first time I am using Greenhouse Powder Feeding (I got the idea off a friend, whos plants were looking very healthy). I had a plan in my mind for some reason that I would use the Mother Plants one in veg and then switch to Hybrids, as my strains are mostly hybrids. The strange thing that I encountered is that , using the mother plants feed, the girls were kinda slowing down on growing at the end of the second month and just making their stems at the bottom more wide ... or I was hallusinating maybe. However when I switched to the Hybrids feed and along with that switched the cycles - they exploded and some grew like 20-25cm in 3 days. Or maybe it was the pruning all alone... Overall the VEGETATION lasted 2 months and a bit. However for various reasons, the plants were in 1 liter pots for the first 3 weeks so that slowed down the growth. I also had deficiency issues in some plants, of different sorts and I always give them more time to heal. The issues slowly went away when I started feeding them with nutes EVERY OTHER TIME. I will be grateful for every and any advice on the project! : ) THE SETUP Room: 2m x 2m x 2m Buddha box Lighting: 8 x 300w LED panels (180w real usage), 3 watt Epiled diodes - 630nm -16pcs, 660nm -16pcs, 460nm -16pcs, 470nm -16pcs, 3500k -18pcs , 7500k -18pcs In a few days I will put 3 or 4 panels more in the less lit areas, just for fun : ) Ventilation: 1 Vents TT 150 extractor 520m3/h Carbon filter 600m3/h+ Moving fan 30W Substrate: 50% Coco coir/ 50% Perlite, presoaked in 1ml/l Calcium solution, RootIT sponges for the seeds, 11 liter PVC pots Feeding: Greenhouse Powder Feeding - Mother plants (veg), Hybrids (flower) - roughly 3 literes per plant - 0.5g/l first 2-3 weeks in the pots, then 1g/l every other feeding. PH according to the GH scheme for every week. Every week 10 liters flush with PH water, + 1ml/l Calcium the first feeding after Strains: 7 x Liberty Haze, 1 x Skywalker OG Kush, 4 x Cinderella 99, 2 x Critical Kush, 2 x THC Bomb, all fem (may have some GH Cheese also, dunno) All plants have been topped, rather late, and they have been "lollipopped" 80% right on the cycle change. Here are some low-q pictures of the girls, these days will post some decent ones: Stay healthy and be happy!
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