@SHAMMYDOG, Hello mate, PPM is about 600 ish at the moment but 300 of that is the water itself(hard water where I live). Only running quarter strength nutes as most auto's only require a small amount of feed in my opinion but it all depends on the strain itself. :)
Looking good ... Just got done harvesting a Northern Lights Auto & a AK-49 Auto myself. Check them out if you can. I wish you the same success.Good luck with the rest of your grow