So, I am slowly getting ready to start my 5 gallon shrimp tank, and I am wondering about substrate. I am thinking about using turface as the substrate. I was originally thinking aquasoil, but since I am using rodi water for the tank, I figure that I will not need the buffering capacity of the aquasoil. Also I am planning on having the tank lowlight no co2, and I dont need the nutritional aspect of aquasoil either. That is why I am leaning towards using turface, along with some sand to create a similar river bank affect that I have in my 20L. My question is, is RODI, along with an inert substrate, enough to keep the pH in a range to keep and breed CRS? Also I seem to remember that some kind of additive is need for shrimp when using RODI water to add back essential nutrients. Thanks in advance!