2 of my 6 plants have some sort of deficiency

[buttermonkey225]

2 of my plants have been struggling the past weeks, some of the old growth leaves have been been turning yellow at the tips, and small brown spots are coming up along the leaves! Someone please help!!!

 

[mysticepipedon]

Welcome to THC Farmer.

Answer some of these questions and people may be able to help you.

https://www.thcfarmer.com/threads/read-me-first.1245/