Plants leafs curling

Whiteknight19 said:

This is my first time growing and have looked around the Internet to see what the cause of my plants leafs turning the way they are and can't really find any information that is a solid answer to the problem as they all look so familiar.
At the moment I'm doing them in my bathroom and moving them into a shed/grow room.

I am running a 600w HPS Light. 100% soil then going to a 60% soil 40% perlite when ready for moving into bigger pots

I have attached some photos.

Click to expand...

Whiteknight19 said:

I have these would they be okay to use as a fertiliser in the foilar spray?
Biobizz Bio-Bloom
Biobizz Bio-Grow
Biobizz Top-Max

I am guessing 1ml per litre?

Click to expand...