Having a nightmare in coco

[Greenuno]

2 weeks into flower and a lot of lower leaves are falling off with black patches appearing. Some leaves that look perfectly healthy seem to fall as well. Honestly any information would be great.

 

[Mayne]

ph problem?

I switched to PH perfect ( Advanced Nutrients) for these very reasons bro, in coco. Its been amazing since.

the very top one looks like light burn, then a couple look like physical nute burn, like the leaf sat in the nutes

 

[Greenuno]

Ah nice one bud......been using the canna range but not sure. Seem to always get some sort of issue with. I did rush in and put blackstrap molasses in the reservoir and for some reason knock my ph real low. Do you use advanced nutrients full range?

 

[Mayne]

i use just the trio, and recharge. and of course cal-mag.. Love it. Not a purple stem, burn, spots, nothing

I use 4ml per gallon of all 3.

havent used a ph pen since i ordered this stuff.