Yea, i have a 2 week old baby going, and its really kickin in with the vegging. somehow, i don't know how it happened, i looked and there were a couple really small vertical slits in the lower stem. THey are small, like maybe a mm or 2mm long, there's 2 of them. I never disturbed the plants, but somehow these vertical slits/cuts appeared. it almost looks like the plant grew too fast, and split the skin as a result. i know this is impossible, but thats the image of what this looks like. anyone have that problem? they are really small slits, no moisture or leakage from the slits, so they will survivive right?