Leaves Deficiency

the dead tips and twisting top leaves looks like boron -- which is rare. So double check pH. a more likely cause when you see trace element issues. N, Ca, and K can lock it out, too. So pH or one of those are too high. The only reason to consider boron is if you are a soilless/hydro context and you are using soil-based nutrients for some reason. otherwise, soil will have it in it and hydro nutes of any value come with the trace elements.

It's hard to say something if you don't have a diary. This can be caused by multiple reasons. At first sight light might be too strong.