Do you have multiple grows going mate as I've read this before?
Only 8/9cm should you chop it down. Is this happening on various strains or just 1?
All the best
Mark..
Looks very short to me for a xxl !
Mine is 4 weeks old and at least 3 1/2 feet tall ... but I’m growing outside.
must be a light or soil issue...? Curious to know !