Top Fin® Premium Aquarium Gravel - Green Mix - Fish Tank Substrate - 5 lb

DESCRIPTION A good quality gravel bed is needed in the aquarium to assist in mechanical and biological filtration. Top Fin Premium aquarium gravel fits the bill, and with such a wide variety of terrific colors, you can choose one or more to accent the overall look of your aquarium. Only at PetSmart.Features: Assists in mechanical and biological filtration Comes in a wide variety of colorsIncludes: 1 bag of gravelIntended For: AquariumsMaterial(s): GravelColor: GreenSize: 5 lbDirections:Use up to 1.5 lb of gravel per gallon of tank. Rinse thoroughly in cold water before using. Never use soap or detergent. When filling your tank, place a saucer on the gravel and pour water onto the saucer. This will prevent the water from disturbing your layer of gravel. The aquarium gravel will become a home for beneficial bacteria to keep your aquarium healthy. Once your aquarium is established, do not wash the gravel. Just use a gravel vacuum once a month to clean out loose particles. Caution: Gravel may contain minerals that affect water pH. Monitor your water pH after adding gravel and adjust as necessary to avoid sudden pH changes.