Gravel and sand?
I bought some dwarf cories earlier this week and am thinking of putting some sand in my tank for them to dig around in. One corner of my tank doesn't have any plants in it, so it would be easy to kind of slide the gravel away, and replace it with sand.
But in thinking aesthetically, I'm wondering if sand would look better covering the entire bottom, instead of just a corner. If I decide to do that, can I just put a layer of sand over my gravel? Or should I replace the gravel with sand?
Any thoughts/ideas are appreciated - thanks!