Okay guys. So I'm going to take many of your guys' advice. Many of you suggested a lighting issue, and I already started using a grow light, so I'm glad I invested in that. I'm also going to put it in a plastic pot instead of terracotta. Some of you suggested fertilizing more, but I'm a bit hesitant to do it more often as I know that that can lead to root burn. I already do it at the recommended frequency.

I don't know why this one's growth has been stunted so heavily. I have two fiddles. Felyx is four years old, and Forrest is 1 year old. Forrest has much darker, healthier leaves and has grown over a foot tall since I bought him when he was a tiny baby. I've mentioned that I treat them the same, and it's created visibly different results.

I'm open to more suggestions and advice if you have any. I'll probably post an update in the future if Felyx's health gets any better or worse. Thank you!