Hi,
Study how I created the Chat system, it's purely about sending a event across the network, you can define who's catching the event,
so in the case of your particle, create a similar system based on the chat logic and instead of sending a text, send some information about the effect itself
So, the key is to understand the chat system and understand that this is actually totally generic and can be used to communicate between components of your game, not necessarly for players to communicate.
bye,
Jean