koltose by mash black fish tank gravel, 17 lb. bulk black colored aquarium pebbles, fishtank & terrarium gravel, freshwater fish aquarium colorful pebbles, potted plants, decorative aquarium substrate, vase fillers is up for auction in Pet Supplies. The current bid is $2.50, in New/Like New condition. This auction has ended — similar items appear in live auctions regularly.