The question is which of my nutrients have caused ...

Hey there, i was looking iver the last weeks and i noticed some tips starting to change between wk 10-11 and then progress. I know some people will do a small flush when they transition from having grow nutes to mainly flowering ones, so if i was going to guess I'd say it was related to having the grow + bloom together so far into flowering. But i had another thought, sometimes when we switch to led from a lower powered light the plants have to adjust to the led, perhaps that could have given the plants a small surprise also a burnt a few tips? Just a few thoughts... happy flowering. ✌️

give her only water for about one week,with 20% runoff so you can clean all the salt deposits on the bottom which definelty acumulated over time with all the extra feeding ,then start pumping nutes again when you see signs of your girl praying to the sun ,it's easy simple and efficient :D good luck!

Overfeeding , it happens when nutrients aren’t used totally by the plant , those nutrients start built up in the media and after a while they turn into NaCl (salt) , turning the media into an hypertonic condition the plants reverse the flow of her fluids (water) to balance the salinity of the media to turn it back into an isotonic condition, this is why your tips are burned, they are dehydrated to be exact. It usually start to happen past 1200ppm’s .... For those 3 last weeks you can cut all your nootz and use plain water only

I couldn't say that it's one nutrient in specific that caused the problem. Tip burn is the first sign of over feeding your plants, many growers including myself have slight occurrences of tip burn. This is why documenting your grows and keeping track of your ppms on a weekly basis can help you for your next grow. Keep in mind different phenos and strains will also vary the amount of nutrients one plant can handle. If you have 3 weeks to go you can start to lower to amounts you are giving and from the pics I see your plant should finish strong. Cheers.

Its always the Nitrogen. You are using 2 products, perfect grow and B52 both contain nitrogen and thats adding up. Nitrogen is needed for vegetation stage until the strech in flower has ended. After this the PLant has no need for nitrogen. The fulleffects of overfeeding shing up dys later. Solutions. No feeding of B52 and perfect grow. The damaged leaves will not change but no new damages will come. You can give them a nice shower in your bathroom too. So buitups get flushed, and she will grow nicely