I added some white gravel to the solid black that I originally had. I also added some driftwood. The wife loves the white gravel and I am still up in the air about it. I of course had to throw in some ray pics, especially of my female triple spot motoro.
Black sand, with about a Quarter as many white pebbles you have there, would look awesome imo. Especially if you were keeping [FONT=arial,sans-serif][SIZE=-1]Leopoldi Stingray.[/SIZE][/FONT]
but Im curious if you are worried at all about waste building up in the gravel? Or do you syphon that frequently? .. I set up most my tanks for functionality but thats why your tank looks way better and would be much nicer inside a living room
I do a water change every 3 days and siphon the gravel every 6 days. Usually don't get a lot of solid waste out of the gravel. The rays are constantly moving it around and digging in it. I have a lot of current at the gravel level so most of the waste ends up in the filter.