1pc Deep Sea Sinking Boat - Realistic Landscaping Decoration, Pneumatic Hideaway Design, Oxygen Enhancement, Fish Tank Toy, Aquarium Accessory for Healthy Fish Environment

Plays a vivid and oxygenating effect. The amplitude of the action varies depending on the amount of oxygenation. The pneumatic product is made of resin and plastic materials, partially hollow, and lightweight in water, When oxygenating, there will be an upward buoyancy. It is recommended to use a bare cylinder (without bottom sand), Use 1-2 suction cups to fix the product at the bottom of the cylinder, and use a sand cylinder with a bottom, You can press the lower part slightly with bottom sand.