v5 (esprit and Infinite) supports preanimated meshes (animated animals/humanoids etc) but i have no idea if e.on will ship v5I with any type of fish. Other then that using poser to pose models and then animate/render them in vue is an excellent choice and both applications work realy good together. Once youve imported a poser character into v5I youll be able to repose it in poser and the character in v5I will update to the new pose (if you want it to of course). As for what type of preanimated meshes v5I will ship with youll have to get someone from e.on to come around and answer that.