SunGrow 50 Pumice Beads for Betta Fish, Volcanic Lava Rocks for Filtration, 0.2" Aquarium Decor, Anchor Plants in Pores, Helps with Aeration, Hiding Spot for Fry in Freshwater and Saltwater Tanks

Provides Better Tank Water Flow -- Our lava rocks for betta fish allow water to flow through their porous surfaces, helping to keep the purity of the tank for better vitality of your fish. 

Brown Stones for Aquarium Decor -- Our 0.2" volcanic lava stones feature an earthy brown color and porous texture, enhancing the beauty of your tank for an optimal betta habitat. 

Lava Rock for Water Stability --- Our rocks' composition works together to help maintain consistent water conditions in your aquarium. It also encourages beneficial interactions in the water, contributing to thriving surroundings for your betta. 

Ideal Substrate for Fish and Plants --- Each 50-piece pack of our lava rocks weighs 0.5 oz (12 g), providing a stable surface for your betta to explore and rest. They also foster strong root growth for aquatic plants.  

Long-lasting, Low-maintenance --- Our durable volcanic stones require minimal maintenance and won't degrade or alter water interaction.