Something is not right. I use the FF stuff full strength all the time. There must be something else going on.I'm growing a primarily sativa plant right now and I am having extremely bad burning on my girl, I've never fed over half strength on the nutes but may have perhaps fed to frequently, in fact i fed so light I'm having a lot of questions about whether or not I'm deficient instead of burnt. Seems like this plant would be able to handle half strength in full flower.... bummer I didn't know to go lighter with these nutes before now... (if that's in fact the issue)
I invite your expertise to read through the link in my sig to see where i went wrong then because I never went above 1000ppm's every other watering and I have a burnt ass plant even after a flush...Something is not right. I use the FF stuff full strength all the time. There must be something else going on.