Your soil pH is crazy out of range. You need to control it between 6.4 and 6.8.
The pic on the far right looks like a SERUIOUS mite infestation but too blurry to be sure. Look for webs under the worst affected leaves.
The plant is also showing signs of being root bound.
Your ambient temps should be 78'F day/68'F night. Mites breed faster in high heat too.