i currently have all black rock substrate but i really love the way that white sand looks..the only white sand i can find around here is the argonite sand for freshwater tanks..im wondering will it turn green or brown? how do u clean it? or what do all of u use that is white sand? im so sick of the black rock!!

all I know about aragonite sand is it's mainly used in saltwater tank and for fish that require a soft bed

http://www.bigalsonline.com/BigAlsUS/ct ... grande20lb

that link may be a better bet for you

sand also should be the top layer of other substrates for it to really work well...also sand will compact so it need more vacuuming (though I frown upon this)...best to keep with a gravel substrate yet a smaller size gravel; gravel comes in various colors if this is your concern

look online, you are bound to find the gravel you want...here are a list of online fish stores:

Dr Fosters
Big Al's
Fish.com
Pet Solutions
Pet Guys
Petco
Petsmart
Pet Discounters
That Fish Place

Take your pick...I am sure someone here in this forum who actually dealt with sand in their tank will supply more information.