HELP. Leaves look droopy.

[Dlefurge]

These leaves look like they are dropping and growing a little funky. It is a skunk plant. I am using the autopot system with coco blended with perlite for my medium. Also I am using the airdome to inject air to the root system. They were put into the autopot on dec 11 and grew like crazy but now they seem to be slowed.
my water ph is 5.7 and my ppm is around 850.
They are under a 1000w MH but it is turned down to 600w

 

[SirSmksAlot]

Looks like they could be getting a bit to much water. Color looks good

 

[D.A.A.S.69]

They look fine to me.

 

[Dlefurge]

I know my humidity was on the low side, my wife had dehumidifier on and it was below 30%. I now have it up to 37% and 23°c now. Not sure why those pics showed so green. I know my afghani is growing like a "weed" she is super compact and has her 4th node now. I plan on doing a grow diary here if I can on her. She looks like she is going to be my future grows unless the other ones take off.
I have original BC Big Bud and skunk and an afghani crossed with NYC diesel.

 

[SoOrbudgal]

They look real good, welcome to the GWE forum. FYI sometimes especially when they first wake up from lights being off they will droop abit then reach upward again. Good luck