anyone else? I am leaning towards the playground sand as it is very cheap and easy to get. Will it change the chemistry of the tank at all? is there a better way to wash it then useing a bucket? also does anyone have any good pic of there tank setup with playground sand? I also read about algae bloom with the playground sand? one other option is I have about 160lbs of aragonite from zoosands.com but i dont know if its good to use. its the white sand on his website.