Not sure how I could ever get away with that. Coco/Perlite, and the good canna stuff, straight lockout by week 5 running it with aerated tap water. bright yellow leaves coved in rust spots with black stems. I tried to get away with it, I wish I could. Tap comes out at 8.5 here though, maybe yours is closer to what actual living things need though haha.
Now who doesn't climate control, cause I let that shiz get straight cold and dry, and these weeds power thru at like 55f 12%.