Twisted Leaf Growth

[Gjourney101]

Hey guys. My plants were in Vegetative for about 1.5 - 2 months approximately and I switched them to flowering about a week ago. The white pistils popped and those are growing well, but the new growth is twisted and very small, stunted. My biggest concerned is everything twisting.
I check my pH regularly and have used no nutes whatsoever the entire two months. I have more than 50 percent perlite, great air flow, and water only when needed (dry). Any one ever experience this weird phenomenon?

I'd give a far greater detail to my grow and set up and everything, but it's fairly late.

 

[Gluteous]

I don't see anything in the photo to be alarmed about honestly. Are you really using MG? That's not an ideal medium for cannabis. The nutrient requirements of your plants change over the growing cycle and MG does not. It's heavy on the N and doesn't stop. if you've had luck with it, more power to you.

 

[Smallgrow]

Twisted or Taco shaped leaves may be caused by light or heat stress . Plants in flower are more sensitive to just about everything than ones in veg.
check the main GWE site on those topics if you think that could be it