  A simple model of fluid whose constituent particles interact via a short
range attractive and long range repulsive potential is used to model the
aggregation of giant clusters made up of hundreds of particles. The model can
be thought of as a simplistic representation membraneless organelles or a
straightforward rendition of colloid flocculation into large spherical
aggregates. We illustrate how temperature and particle density influence the
cluster size distribution and vary specially the inter-cluster dynamics. The
system is shown to exhibit two well separated length and time scales, which can
be tuned by the balance between repulsive and attractive forces.
