Gained 4-8 inches in height this week. Did notice a little rust on a few leaves. Smoothies buds are popping everywhere. Sweet Gelato is just starting to flower with pineapple Express not far behind.
Looking good bro, iv got pretty much the same plants on the go at 5 weeks, needed calmag in week 3/4 on the pineapple. My first grow as well. Good luck
It seems that those of the central line, grow more slowly.
Have you tried changing the pots? So, you can check if the lighting works uniformly.
Sweet smokes!
-Apolo