I'm thinking that the coco I used for this grow had very high levels of salt. All my plants seem to have stalled, this one has been hit the hardest unfortunately. I've only been flushing for the last few waterings.
This run ended up being a crappy run, i went away for 2 nights to come home & find my ventilation kit & circulation fans had died & my girl was smashed by pm & budrot.
I currently have 1 Black Apple Hitchcock in flower & 3 others in veg. Will be moving em to flower soon, as this run is gonna be for making more seeds