I used two different types of sand. The bulk of my substrate is river sand - very generic term. It looked like very small (1.5-3mm, but not crushed) pieces of quartz mixed with a very fine silt. Looks awesome but takes forever to settle is it gets really stirred up. I also sprinkled some white synthetic sand with it so it didn't look so brown.
I know a guy with heaps of rays who uses something very similar to the AquaOne "Salt and Pepper" substrate seems to work real well for him
I know a guy with heaps of rays who uses something very similar to the AquaOne "Salt and Pepper" substrate seems to work real well for him


