So last night I went into my veggie room and noticed one of my leaf plants had at the tip silver like if I had taken a silver pen and drawn on it. But the rest of the plant is really green. I pulled the leaf not even thinking about taking a pic when I tried to get it out the trash I couldn't find it. Because it was only the tip of one leaf could this be a result of me over nutes or a pest issue? I did add 3 days ago more nute than I should have added to veggie. All else was fine prior to doing that. Any suggestions? I read about the I googled thrips and true damage they do to leafs and my dwc indoor leafs don't seem to look silver all over the leafs (thirp poop) so is it due to overfeeding of nutes?