Create an Animation

I need to have 3 animations made VERY URGENTLY! They will need to completed TODAY! The first animation must show two fish very similar swimming. The first fish will swim towards a different yellow fish and clean its scales. The second similar fish will swim towards the yellow fish, but instead of cleaning the scales, will kill the fish and blood will go everywhere. The animation is being used as part of an industry presentation to demonstrate fake products and how they can hurt the market. This is just one of the three. The other two are very similar in terms of complexity and I will give you further details upon acceptance. Thanks!