www.cocoforcannabis.com
Dude you’re awesome! I didn’t know that resource excited! Thank you so much! I think that’s it- it makes sense at leastWhooaaa that's a lotta light. Are you using a PAR metre, if not how are you gauging how much the girls are getting. See the following PAR map for your light:
Mars Hydro SP 3000 Field Test & Review - Coco For Cannabis
Coco for Cannabis & Migro grow light testing. Mars Hydro SP 3000 Review, Video, PAR map, PPF & PPFD, Efficiency, Hanging Height, Harvest Estimates
He is hanging this at 21" and getting big numbers. I use the TSL 2000 which is similar power but different layout and diodes. I started mine at 30-36" for seedling, and didn't even get below two feet until a good month after germinate, and I was running at 35-40% power. I use photone on the iPhone for accurate reading of how many photons they are actually getting. This and a reliable guide for PAR levels at different growth stages are your friend.
Again I state I'm a complete novice and suggest confirmation from those who know, but what you say only makes me double down on my bet. Too high light levels are forcing your plants to demand a level of nutes you can't provide without actually giving them nute burn. It's essentially a man made nutrient lock out issue. I would definitely move them up, if the above guide says 21" for best light distribution that's probably not a bad starting point, then use the dimmer to adjust light levels from there. But measure the light levels don't guess. Hope this helps!
Too easy mate. As I say I wouldn't rule out better advice from someone who really knows their stuff but I knew enough to know that's a lot of light haha. That page is great for PAR tests and also has other good advice for growing in Coco. Their Forum has nothing on this one though...
Looks light too much light.
I have these yellow tips on new growth only. Everything I read online points to mute burn and im a week away from flowering. I can’t find info on if I should flush until a week into flowering then begin nutes again, so just flush and immediately add nutes - in coco.
I have salt build up on the outside of the pot so I’m sure it’s from me giving it too many nutes
more distance from top of plant to light would help can i suggest do some reading on this matter as there is so much bad advice being given on some of these threads? ppls answers? calmag.. all the time ... ive been growing for years never used calmag EVER never used a ppm NEVER just lay off the nutes for a few feeds let em bounce back remember its a weed a little light and water wont kill em then maybe after you see em bounce back slowly start your process again keeping in mind all these little problems now can and will have a marked diff in yield.. on that note i wish you alll the luck friend.
