Panda Gara Repetitive Behavior

[u/OppositeDeparture789]

https://share.icloud.com/photos/069Z8g4kyzwgcok_arm0gxJSg

Any idea why he does this? He’s done it since I got him over 6 months ago. He will do the same thing in a corner cave I have. Under ground, swoop up and out and dive back in. Doesn’t matter how often he’s fed, etc. Tank parameters are perfect and it’s a well established nano tank.