looking nice. i did read an online scholar research on feminizing seeds. carbon monoxide will do the trick. i had it bookmarked but deleted it weeks ago, couldn't find again. i also read a grow journal of a guy who doses his plants when about 5 to 6 inches tall gives them about hour and 45 minutes to 2 hours of cm. i am going to try with the tail pipe of my car 8 feet of exhaust tubing and a box with some holes in it. will let you know how it works. am on my first grow so might be awhile. having trouble already with seedlings.
peace,