Yellow fields

Increase you nute level to around 700/800. Make sure it's in the ph range of 6-6.5. Yellowing at the bottom is always lack of nitrogen or light but it looks like nitrogen 🌱👍

Thank u! They confirmed my suspicions but its costing me to reverse the situation, its the only one very affected keeping all the same nutritional table. 2 very healthy and this with the genetic mutation very affected. We ll see in one week

also, if you think other things are in balance, try raising pH to 6.5. Will increase N availability a bit. not enough to reverse this, i don't think, but could help keep a better balance of ferts.

go ahead and feed full strength in coco each time with runoff.. ~20%. assuming not too much higher than 500+tap.. i'm around ~1000ppm with tap.

You definitely have a nitrogen deficiency. A cannabis nitrogen deficiency will cause the older, lower leaves on your plant to turn yellow, wilt away and eventually die. The plant typically appears pale or lime-colored. The yellow leaves of a nitrogen deficiency may show signs of brown, and they will usually become soft and sort of “fold” in, before possibly turning crispy but ultimately falling off on their own.