First grow 2x2

81f aint to bad i can hit that from time to time with not many issues. Hold your hand above your plant and feel the heat for yourself, also try make sure u have a fan blowing over the top of her. The humidity could be a little higher if possible they thrive a in slighty high humidity than you have in veg. All in all she will be fine though, Dont worry, for the most part this hobby is about keeping your feeds in check and your conditions at least medium quality will produce you fine buds.

Hello. That was a weird answer. I think everything is fine. 90% sure you did that picking up the plant pot and caught the leaf between the pot and your hand. It's easy to do. The plant looks good. Good Luck. Chuck.

Check my grow diary, I'm LST-ing my plants. You may want to consider twisting your stem so that all your nodes (branches from stem) are at equal height so that they grow equally. This will also allow your fan leaves and nodes to be more exposed to light. Your leaves aren't an issue as the plant is still young so the nodes will stretch out to get light. If they are a little hidden from the light then just push your fan leaves out of the way without damaging anything. Also let your stem stand horizontally for more light distribution. Other than that...if you are considering to Scrog(Screen of Green) then don't LST yet until you have topped your plant when it has 4-10 nodes(8-20 branches) and then LST the nodes. But btw great development. I hope this provides you well. Good luck the rest of the way!