Bring a touch of the tropics to your aquarium with Oceanmax Green Gravel Fish Tank Substrate Stones. This 1kg bag includes bright, 3-5mm artificial green stones that create a natural and lively backdrop for aquatic plants and fish. With a neutral pH and easy-clean surface, this gravel is perfect for both beginners and seasoned aquarists. Use it to design vibrant, healthy freshwater tanks with a lush, tropical aesthetic.