Alaska

Hi there,Your photos isn’t clear to diagnose your problems.I think there are two possibilities for your canoeing leaves.Heat stress and humidity.You are using 600W HID at 16inches and you didn’t mention your humidity.Low humidity and high temp around the leaves (even though your temp is 24C),could lead to canoeing leaves at this age.Check for those two and your plants will be better.Happy growing... ✌️

Hi! From that pic alone I would say she looks perfectly healthy. If your temp or humidity is not in the optimal range the plant might show some signs but it's not so big of a deal 'cos they will adjust to many different situations still.