It is very difficult to diagnose.

If these problems appeared AFTER your transplant, then you can assume, most likely, you injured some roots, or, roots are having problems taking new soil.

I always use hormone transplant powder in the soil.

If I were you what I would do is:

1. Stop using distilled water. Why do people do this? It is great if the water has be RO'd AFTER the distillation process, but if not, you shouldn't use it.

Distilled water means all over its electrons have been boiled off and the water molecules contain essentially dead hydrongen atoms. Dead Water.

Also, ignore your soil pH because you need a much more accurate device than what you have used. Instead make sure the water is right at neutral..or 6.8.


2. I would get some schultz rooting hormone powder and add a nice thimble sized chunk of it and mix it with your next watering.

3. All those leaves will be dead in a while anyhow so as long as it doesnt get worse, you'll be fine. Sometimes the lower leaves get harmed when the roots tap into different soil.

4. While you say not their age, I dont think they look anywhere near needing nutes at this stage.

Very pretty indica there...you might wanna LET THEM stretch just a bit more. It'll help later on when you flower your tomatos.