What can I do to revive these babies....think my ppm/nutrients were a bit high last week. I noticed them starting to drop this week. I did a water change and used half nutrients. I think the big ones have root rot not sure. Cbd plant 1 was ph 5.63 ppm 362.... not slimy or mushy and I can feel firm roots. Second cbd plant ph 5.73 ppm 788. Can I save these? The lil ones were just put in this week. Thinking they are just adjusting???