One of them is being LST'd but the other are getting somewhere the biggest is either 2 or 3 month old I list track but I'm satisfied at the growth rate
looks copper deficiency,, unless the tips are burned,, but hey are you using heavily filtered water or R/O water?
hey try using some tap water if ur not!! tap water left to dechlorinate, if ur organic,, its got some things ur plant needs too!
The burnt tips are from nitrogen toxicity but that was some time ago and I pruned some of the leaf tips
And I do use tap water and let de chlorinate im pro organic but yeah you got some good eyes to notice the burnt tips but other than that I haven't had any problems since the nitrogen toxicity