balls are crafted from tough rubber

Propionic Acid (a natural preservative)

Tailored for All Fish Tank Sizes: Flipper caters from small glass fish tanks to big glass fish tank enthusiasts

Designed for saltwater aquariums up to 30 gallons (115 liters)

keeping them engaged and active indoors

CaribSea Super Naturals Aquarium Sand - 20 lb - Natural Substrate for Freshwater Aquariums, Enhances Aquascaping & Promotes Healthy Aquatic Environment Variant:Midnight River balls are crafted from toughBrand Carib Sea Liquid Volume 20 Liters Item Form Sand Target Species Fish Manufacturer Caribsea Inc About this item Soft & Natural Appearance: CaribSea Moonlight Sand features fine, smooth texture with a bright, natural tone, enhancing freshwater aquariums. Ideal for Freshwater Tanks: Perfect for planted aquariums, community fish, and bottom dwellers, this sand creates a stable foundation for plants and fish. Supports Biological Balance: The fine