Is this tigrinus having a deformity

[headbanger_jib]

I believe it has that protrusion due to the blending of its neck are and the skin it bring shortened which in turn would lead to the skin sagging as it is now. Good evidence that the jaw was once in a normal straight direction.

The pouch is only on one side, the other side is normal.

I am sure it's because of a parasite, this Saturday I would be finishing the fish Lice and anchor. Worm course (oceanfree zero anchor and fish Lice).

Sunday I will catch him and inspect the inside of its mouth.