Hey guys Im on day 50 of my first attempt at 12/12 from seed grow. Im under 600 watt light and doing a DWC. The plant is 28 inches tall and has not shown sex yet. I am growing two plants. The other is only 18 inches but showed sex at around 21 days. The plant loogs good and healthy but is this normal to take so long to show sex? What is going on?