could very well have been a mite, monitor them closely. I recommend taking a leaf or two from every plant and examining their underside under a scope (I remove them from the plant) generally take ones that look less healthy or have spots. Spout of my lighter is much larger than a normal mite (normal mite may be as big as the little hole the fluid comes out of) which u can barely see with a naked eye, but the red ones are larger than other spider mites. If u have them u will notice them on at least some of the leaves u take, where there is one mite there r many and many eggs. If your plants are in veg, id recommend taking a bunch of leaves and checking thoroughly before flowering, a small mite problem gets VERY big very fast when they have a fruiting baby to munch on. If you dont have webbing, and your plants r in veg u are just fine, they probably haven't had any effect on your garden yet, get some floramite and put the problem down fast. If u live next to your plants i don't recommend this product,(in your closet no, in your garage yes) but the shit works (very toxic) but totally safe for your end product as long as u aren't flowering yet.