Multi-colour fluid?

I was wonder if it is possible to have different types of fluids interacting with eachother.

For example I want to let a drup of blood fall in water, is that possible? And how?

Currently not, particle fluids is currently in development so maybe something in future versions.
You can only bake a single fluid at a time. You can have some interaction by baking ofluid ne and then using that as an obstacle for your second fluid but this is not really like two fluids interacting.