can anyone tell me whats going on with alaskan ice

here is my alaskan ice on the right. its in week 3 flower and everything seems fine but around the new growth, the leaves are kind of strange. anyone know what this is from? thanks

looks like heat stress.
nutirent defs/burns have a habit of showing up on older leaves first.
those look like new growth to me

hmm heat stress okay. i moved my light a bit farther away and moved my fans closer. you think this should help it? its not very hot only a 150w

could be a toxic salt build up , might be worth flushing just incase and that will get a rid of a possible nutrient def/toxicity