Both plants have them and both plants look happy and healthy so I'm just gonna keep a close eye on them. I ran out of rhizotonic so they haven't had any since going into flower and my guess is that there is some dead matter in the coco and the springtails thought it was a buffet so they all turned up lol, as I read they don't damage the plants I'm gonna leave them and see.
I add pk13/14 @ 15ml per 10L of feed and they get 2L of feed every day, I know these are hempys but I haven't changed the amount or frequency of my feeds and I get approx 400ml of runoff
Every 3rd or 4th watering I put double the amount through at half strength so 4L in and get about 2.4L out, this stops the build up of salts in the coco and I have never had any problems doing this.