Hi guys so I just come across this problem.
Problem appears in week 4, remaining until now 5.5 weeks. Top leaf ( the leaf between sugar leaf and fan leaf) start to curling downwards..
Buds still grow in size like normal but leaves starts getting worse..
Base nute Gh, kool bloom liquid, floracious, bud candy. Water every 2 days.
ppm 1000, temp 24-26, RH 50-55%.
Anyone has an idea ? Please help I would be really appreciated. Thank you.