Hello everyone!

today, i bought a REALLY nice background that i have never see before. It comes with its own waterfall thing that runs down diagonally and then to the bottom.

But, the only thing bugging me is im not sure what water i should use? I don't want to have to change the water very often and my viv will only be around a quarter of shallow water.

So, i will really appreciate your help guys! Im still going to put a water dish because im sure i still need to.

Thanks! Have a good one.