Hi, I’ve never really tried anything with water simulations before though yesterday I came across a lego water simulation, so I tried it out for myself. Here’s some stills of what it looks like and you can see the full video here: https://www.youtube.com/watch?v=Ygk7KAXoaHg
There’s a good tutorial for it but basically, it’s just a basic fluid simulation and you parent the fluid to a block of lego. Then you use a gradient in the node editor to change the colour of the water depending on how high it is. It’s not too complicated but takes quite a while.