Well there is something seriously wrong if you have flowered for 6 wks and dont have bud sites. Not just your light leaks.

First of all flush your system for 24 hrs

Drop ppm by 100-200 when you add your new solution

Make sure your ph is 5.5-5.8, check often

Add another airstone in there aswell.

BTW light stress and just stress on a the plant in general are a factor in hermies. Watch out for some nuts hangin.

Good Luck