im not sure what name of the sand is but at first I bought some really light brownish sand and I didnt get enough so I went back to get more and they didnt have anymore so I went some other fish stores and found some sand and put it in and it was white sand and mixed it togther and I like how it came out. A friend of mind told me to put in some live rock to help with my water but are is there any live rock for fresh water tanks?