Sour Crack

Start week 4 Saw a couple flies/gnats last week (Maybe a result of all the garden tomatoes in my kitchen, or overwatering) so I'm paying close attention to topsoil moisture and setup a couple sticky traps Day 22 Plants are taking up the water a little more each day. One plant still showing those yellow tips but I'm struggling to narrow down the cause (I'm leaning towards a pH or nitrogen issue) Day 23 Successful LST on the best plant, probably a couple days ahead of the other one in IC Three fruit flies on the sticky trap Day 25 Successful LST on plant #2 All four plants showing flower but the two in Great Lakes still are a good bit behind. They are growing taller and their trunks look strong, but growth seems much more compact Day 26 fungus gnats made their return, countered with DE and reduced watering Day 28 gnats are gone (at least for now), did some LST on plant #3 and she has responded well and bonus, those worrisome yellow tips, they're still down there, but all new growth is good, now spreading or further leaf degredation. All four plants are starting to stretch out, and with a lot of leaf tucking, more and more colas are popping up above the canopy. Plant #1 finished week four at 8" tall with some nicely curved stems. Plant 4 looks to be growing one big cola, not much spreading and I'm not sure where to even try LST as the nodes are so compacted