IS PREMIUM PLAYSAND FROM HOME DEPOT OK FOR A START TO A DSB?....................IT IS STERILIZED AND, BUT I WAS TOLD THAT IT CONTAINS ALOT OF PHOSPHATES AND SILICA WHICH I DO IS NOT A GOOD THING.I MOVED.TRIED TO SAVE EVERYTHING BUT..MY FISH DIED..:( ....AND I HAVE TYO START ALL OVER.GRRRRR