Not enough light, too much water, not enough nutez, too much nutez, bugs. The list goes on to as of what could of caused this. Check you PH and Temperature. It looks like heat from having poor circulation of air in there. How is the ventilation? Do you have a van in, and another one blowing air out? Or an exaust so that the hot air can escape.
well, the 2 on the far right, the more fluffy looking ones are probably female and the other 3 are male. But thats just my instincts telling me that. I have some growing that are a bit bigger, one of mine looks fluffy, and the other one looks straighter and more spread out. I set the babies into flowering tonight, so I will have to wait and see if my instincts are right...
Dont get high and pull any until you know for sure. I got really baked my first grow outside and "mistook" all ther indica looking plants for males. That still makes me feel stupid in retrospect. Plants look good,what are you using for light?
looking good man. is there any venting in there.? they look very healthy though. as for that dude saying 3 of them were male. lol no is absolutely no way to determine sex this early. he was saying something about fluffy leaves makes it female...