First ever grow

So these are the girls at 28 days old. Lots and lots of growth this week and I think there are some little pistils growing at the base of each stem. The sticky orange is tallest and the stems much longer so it seems the lower stems are able to get a lot more light than the purple skunk. The purple skunk seems shorter and thicker with a lot of overlapping leaves so any advice on training techniques welcome! I have only watered once since I gave their first dose of nutrients last week as they didnt seem to need any. But the sticky orange is now showing signs of nutrient burn so disappointed myself this week. There are only 2 leaves yellowing at the tip and it doesn’t seem to have affected any others. Thinking of giving her a flush tonight to avoid it getting any worse. I think I might have overestimated the space in my tent to grow 2 plants as they are both now touching each other. I will have to sit and read up on whether it’s a good idea to de-foliate some of the larger bottom leaves this early on or to just let them overlap for now. Hopefully next week we’ll be in flowering mode and the fun will really start!