strange strain

[stinkyattic]

nitrogen - yes
drainage - good
stress - yah likely some

it might have light leaks but
its only eighteen inches high and flowering well

Okay, lose the nitrogen, which promotes leaf growth rather than buds.
Check for light leaks. They can make flowering time longer and give you hermaphrodites. So can stress. Try to eliminate it as much as possible.
It will flower BETTER with true darkness and a proper bloom fert that has very very low N.