My plant is in the pre-flowering stage, but I want my plant to grow bigger before it flowers.

Can I keep the lights at 18/6, let it grow for 30 more days then switch to 12/12? Or do I have to let it flower now?
SeaOGreenies Reviewed by SeaOGreenies on . Pre Flowering My plant is in the pre-flowering stage, but I want my plant to grow bigger before it flowers. Can I keep the lights at 18/6, let it grow for 30 more days then switch to 12/12? Or do I have to let it flower now? Rating: 5