#2 developed a weird kink, she's growing sideways and one stem is turned white so I added a couple of photos here, and wanted to see if anyone's seen this before?
Make sure the white isnt PM, sometimes when humidity is a little high in the tent and the water under the plants can start it early on. If it happens to be PM 40% homoginized milk and 60% water and give her a spray. You also should try to keep your humidity down around 40% as when growing in water your humidity around your plant is actually quite a bit higher than what the tent says it is. Cheers friend