Coralife BioCube Aquarium Fish Tank 1" Bio-Balls for Sump Filtration Size:5 Gallons Recommended for adult dogs

Recommended for adult dogs

5" diameter tennis balls or medium Chuck it balls best for dogs 20-60lbs

Color Clear Included Components Zilla Micro Habitat Terrariums with Locking Latch Arboreal

Vanilla Extract

Antioxidants to help support a healthy immune system & Essential fatty acids to help support healthy skin and coat

Coralife BioCube Aquarium Fish Tank 1" Bio-Balls for Sump Filtration Size:5 Gallons Recommended for adult dogsBio Balls provide a large surface area for beneficial bacteria to grow due to the unique construction and geometric design of the one inch round balls Typically used in sump filtration systems Bio Balls are a good choice for adding biological filtration to your aquatic system