About This

• Sponge stone-- the stone release bubbles smaller, denser, more uniform, help protein skimmer to better purify water.
• Aquarium decorations-- fish tank air stones extend the life of your nutrient solution, help keep fish healthy, and promote hydroponic plant growth.
• Stone hydroponics-- simple appearance design and compact size, will not take up much fish tank space.
• Air stone for fish tank-- simple appearance design, delicate and smooth, and the bubble output is more even.
• Aerator stone-- lightweight and compact size, easy to operate. simple and delicate appearance, simple and stylish.