well here is my fish, be eazy 25 minutes to model and rig. On the left is the bind pose and on the right is some of the cv's moved on the spline to curve his body and tail. The camara was in the same place for both.I got more pic's of it. So let me know if your still intrested in how to splineIK rig your fish. I can tell you the geniral steps or exact ones.