Multicolor Switching: 6 color LEDs change automatically which can make your aquarium more colorful and promote fish growth. Air pump is not included Good Design: Safety low voltage, energy saving, ideal for aquarium, fish tank, swimming pool, pond, etc High Quality: Made of quartz sand, High quality LED heath beads, longer life The effect: Create colorful bubbles for the aquarium and decorate your aquarium Package: Air Bubble Stone with suction cups, air tube and adapter