Wondering if I have an issue?

The purple petioles is just sunburn. Quite common under led’s and nothing to worry about.

The yellow tip burn is also common. It’s what people call “painted nails.” It shows that your feeding is on point. You’re at touching on the max feed line.

A lil is perfect, and what you want to see. If you bump it a bit too much, they’ll burn and brown. That’s how you know to back your feeding off a lil bit. Just look at em like indicators.