Why do you think they're thrips? And BTI won't do shit for them, whatever they are. BTI is a mosquito lavae/fungus gnat larvae bacteria.Went ahead and sprayed, now I guess it’s hope for the best, hit the soil with a BTI drench again next watering, keep monitoring for further damage probably spray again in 3-5 days and vacuum the room the tents in daily. Gotta clean out the shop vac before I vacuum the tent which I’m gonna do after I smoke this blunt. Fuck!