I build on mobile and its a struggle when ur finger gets in the way on small builds..
try ice fire on the clones with void edges then place water.. if ice is blocking then just add heat.
it's a playground.. make edges void or loop, change the clones to any liquid or gas and experiment.. if u don't interact in the plqyground then u will just see what I saved it as.. fire ofc.. the walls will absorb particles to keep the flow going on a loop and maintain fps..