Does this look like nute burn or something else?

My top 3 nodes are all looking like the first picture. Everything below that looks normal like in the second picture. I’m not seeing that the leaf tips are being affected as much as the body of the leaves. I know from another post that my runoff TDS is way too high at 3440. I am going to water with plain water next time. What does it look like to you guys? Thanks.

42 posts were merged into an existing topic: Smoky Smurf’s first grow