Shocked Fish Animation State

One of my animation states for my 15 second "Scared Fish" animation. I rigged, skinned and animated the model however I did not construct the mesh myself. This animation is designed to be part of a state machine in Unreal Engine 4 and the fish is moved back in a recoil-like maner in the final product within engine. Mesh provided by http://www.cadnav.com/3d-models/model-44899.html