ok people ill tell u what i know as for spraying the leaves with water if your gonna do that go get some kind of foliar spray food to mix in the water i use dutchmaster max and dutchmaster penetrator it works do not spray youe plants with just water especially when they r sleeping this will lead to mold or powder mildew i guarantee thatnow if your going to use a foliar spray u r supposed to spray them in the dark or when they r sleeping so try spraying them an hour or so befor your lights come on i have sprayed with the lights on before and it doesnt seem to hurt them but it says not too so try to avoid doing that as far as the holes in your leaves im gonna go ahead and say bugs holes in the leaves anywhere isnt supposed to happen and besides there is no way you can see the bugs anyway unless u have catterpillars which i have had before and they r huge u cant miss em but if it is mites or aphids try using avid i use it and have no problems once again spray in the dark about an hour before the lights come on if using avid always where a mask not the paper ones but not the full gas mask u want the one that covers your mouth and nose with two filters on it if not you will end up growing extra digits lol hope this helps a bit