Doctor Doom Bombs or Triazicideif they are still in veg. If you are flowering you can use neem oil to hold them at bay to finish your grow. They are doing plenty of damage, if you look closer you will see the yellow stippling on the leaves where they are sucking out the nutrients from the fan leaves.
Doctor doom spider mite knockout if it's a light case if it's real bad use a doctor doom fogger followed up by the knockout you can use it up till 24 hour before harvest but i don't use it the last week. If your still in veg you got plenty of time to get it under control, just remember at 80 they breed four times faster than at 75. Good luck hope this helps. ps they sell it on ebay
Unfortunately im a week in flowering and just noticed these bastards, i sprayed them yesterday with insecticide with sulfur in it and now the new growth is browning and some white hairs are oranging a bit. Hot Shot No Pest Strip Is what im going for