FYI @1sttimer1985413 heres a thread with common plant and pest issues to help. I agree, it looks like a pet is munching on your plant, it looks similar to when my dog eats my pepper plant leaves.
Were your leaf tips there one minute and gone the next or have they been slowly dying from the tip back to where they are now?
Here is a ready reckoner for Cannabis plant and pest problems. It has been put together by a master grower. I have edited for content and added to as needed. I hope you learn from this treatise. I have been doing a lot of research on sick plants and also helping out others a lot on sick plants...
It starts like the one in front and turns to the one in the back it started when I watered with nutes for first time i don't let any pets in my tent or my room they are coming along nicely I don't want to lose them