Having some issues during week 4 of flower. Everything was good up until now. It’s starting to look like it wasn’t getting enough potassium (my guess), but want to know for sure what it might be? I was using fox farm trio less than the recommended EC until now. pH always between 6.0 -6.2 but also looks like a little bit of tip burn now so I’m a little confused. I trimmed off most of the deficient looking leaves.