First grow

look like light is too close, but difficult to see form top-view. leaves look like they are growing out of exact same spot - too much light. some "stretch" is needed. i bet it recovers in a day or two, if you raise the lights a bit. hopefully you haven't done anything else as a reaction to this? viparspectra? 24" from canopy at least. if that's what you are doing, use 30" for a week or until it grows out... allow it to grow into light unless it stretches badly. slowly adjust light every 2" or so. No, you have done EXACTLY what you should have... never just start dumping sh%$ into your substrate. always know what the problem is first or 9/10 times you make it worse.. simply read some diaries with constant problems and people ignoring advice to back off or stop doing things... then, they complain that they can't seem to fix it in frustration... lol. it's because a small problem became 10 problems after weeks of ignorance. first 2 weeks are slow.. then it starts growing like crazy. it'll coincide with a larger canopy. try to stay away from teh plant during this time except to peak and make sure it's healthy and when you water. stay away, stay out, stop doting! LoL. if you do. i sure did the first few grows.

That’s normal for a fabric pot , it’s just the salt from nutrients. Solution wash off after use.