The temp is a bit low. Try keeping it between 70-80. If you still have the spider mites, they thrive in temps between 70-80 and even more above 80, so keeping the temps low will help deal with them along with the sprays.
greetings rollitup nation. i just moved out to the great state of colorado and am finally pursuing my interest in growing. it's great to see all the love on the site. i look forward to picking your brains. one love :weed: