Bare bottom

[daniella3d]

You will lack a certain amount of zooplankton that settle and live and reproduce in the sand. And you will lack the biofilter that develop in the sand.

I was on the edge about removing the sand in my nano but before I put the sand my little blue legged hermit crab were always stuck upside down because they had no grip to move around on the glass, so I did put sand just so that they can move easily and the look is MUCH better too.