Leaf tips curling down any help appriciated

[Ganesha420]

Hi this is my third grow. I have an acopolco gold from barneys farm three weeks into veg. This morning I noticed the leaf tips curling down. The temp was around 78 and humidity was 66. It's now 73 degrees and humidity is 58. I don't think it's n toxicity the leaves arnt dark green. I'm posting some pics. Any advice is appriciated.

 

[growsince79]

Its all good.

 

[One drop]

Very small amount it will come good .

 

[Ganesha420]

Thanks for the response