Looks like heat stress to me! When your leaves canoe upwards like that, it's trying to protect itself. And if your using HOT soil, then the heat will amplify the issue. Put a hanging thermometer between the light and the canopy and see what your temps are. Heat like that will ruin even the best strain. Your buds will end up near odorless and airy with heat like that. If that isn't the case, then your roots are getting fried from nutes!