LED burn or nutri burn

It looks a little like too much light. Raise up a few inches and see if the problem keeps getting worse. If it does then it could also be a pH/Nutrient issue and you would need to overwater your pot with pH balanced water. Make sure you are having adequate run off every time you water to help avoid any issues. Hope this helps.

Nutrient toxicity beginning. Forget about spraying with epsom salts, it will not do anything to help you. Reduce either the amount or the frequency of your feeding schedule slightly. Make sure to water to run off each time you irrigate too, this helps prevent nutrient salts building up in the substrate.

Judging by the dark green before the burnt tips I would say your last feeding was too strong. I don't think the light is too strong or your leaves would be more beaten down looking. It might be just a tiny bit strong, but not enough to cause light burn or stress. Judging by how the leaves are looking. Providing lots of information about your grow in question or starting a diary that you fill out well, will make helping you a ton easier. Will also weed out some of the answers that are just bogus. No information leads to assumptions and error then really hurt plants or dead.

Hi good fellow. My advice is mix 1 tea spoon Epsom salt in 1L spray bottle and when is dark spray over each day until will start flowering. All issues will disappear. Epsom doing magic.. Have a nice harvest..💚

Both, check your PH and trn lights down a bit