So I have this female belly crawler pike, I've had her for a few years. In the last few days she's started hanging her jaw open as she's sitting in her PVC pipe, which she does pretty much all day. She's still eaten as aggressively as always since I've noticed her jaw, I've fed her mysis shrimp and crickets. I recently did a water change and removed her from the tank by scooping up the PVC pipe with her in it, as I usually do, is it possible she injured her jaw in the process?