I wouldn't go overboard, nor would I do it if I could afford a cooler growroom, a cool tube, a mansion in Beverly Hills... You did read how it may add a week or more to harvest date, right? And I've never tried using coco for this. Would you be able to keep the soil from drying too quick?
Ok...got the disclaimers out of the way. But if bills are pressing, I'd push the limits in small increments. Keep an eye on soil moisture and ambient humidity levels. You'll have to water a tad more. Perhaps a lot more, lol. I'd forsee no problems with a couple degrees a week or so till acclimated...except I've never tried with coco.
