leafy_greenz

@leafy_greenz, yeah. It can be a bit of both. Depending on how you like to grow. Some ppl like myself like to lollipop. So stretching is not good. With autos if you have a big temp drop that exceeds 5c 8-10degrees you should think about running a 5-1 5 hrs lights on and 1 off. Or 4.5hrs on and 1.5 off. If you want to grow 18-6. Or when you time your lights to go off, make it so that they go into rest at the hottest part of the day in your grow room. Also to to keep a higher temp you can run your exhaust on a timer to turn off and on every 15 mins on and off or for 5 mins out of every 30. This will hold a high temp, once you have a fan in your tent running and always exhaust the high rh/hot air this will all stop the stretch. Take your pick. Happy growing buddy.

@gottagrowsometime, thanks! I didn't even know stretch was potentially bad, just learned this

Took some stretch so far. Good luck with the rest of Preflower. Hope you get some killer colas.

Nice looking grow so far! I have to say, they look awfully dark green - perhaps TOO dark? This might be an indication of too much nitrogen (and autoflowers really don't like much of any nutes in the first couple of weeks).... I don't see any PROBLEM - just something you should keep your eye on going forward! Good luck!