Whats wrong with this gal?? pics

She has always seemed a little droopy and was pretty much the ugly sister throughout about a month into veg. strain is Big Bang and I water using two paper cups of water and Im using FF Grow big and FF big bloom and FF ocean forest for a median, the ph is at 7, all the other six girls are doin fine, any thoughts???

water every three days when the lights first come on

sounds like sound advice, you should adhere to it

I water every three days when the lights come one and that is the only one loking really droopy