biOrb Grass Ring, Medium Lush looking grass style plastic plants arranged on a solid resin ring which slides easily over the biOrb bubble tube Compatible with Freshwater/Saltwater/Tropical aquarium set ups Personalize your biOrb aquarium with a distinctive, creative look Made using high-quality non-toxic plastics to look like the real thing Fits biOrb aquariums 8 gallons and larger Slides easily over biOrbs bubble tube Completely safe for aquatic life