Fluid particles - halos to droplets

When rendering a fluid using particles, I’ve done a simple test, following the example shown here http://www.blender.org/development/release-logs/blender-243/fluid-enhancements/

However, my fluid particles are rendered as a blur of halos instead of droplets.

How do I make the particles appear as droplets of various sizes ?

I think I’ve found an answer to my own question … it seems all that is necessary is to set a halo size small enough to make the particles not visible ? Somehow the monkey on the shelf makes the domain fluid break up nicely into droplets (this was previously obscured by the mist of halos)