Aquarium Air Stone Round 40mm Hisin Blue Ball Airstone | Fine Bubble Oxygen Diffuser for Fish Tank, Freshwater & Saltwater Aquarium, Hydroponic Air Stone with 4mm Airline Connection

Aquarium Air Stone Round 40mm – Hisin Blue Ball Airstone for Fish Tanks & Hydroponics

The Hisin Blue Ball Aquarium Air Stone is a high-quality aeration accessory designed to efficiently diffuse air into water, improving oxygen circulation in aquariums and hydroponic systems. Made from durable porous materials, this round air stone releases a continuous stream of fine bubbles that help maintain a clean, healthy, and oxygen-rich environment for fish, aquatic plants, and plant root systems.

This air stone features a compact round ball design (approximately 40–50mm / 2 inch) that fits easily into small and medium tanks without disrupting the natural layout. Its decorative blue finish blends seamlessly with aquarium décor while delivering consistent performance.

Product Features & Specifications:

• Product Type: Aquarium & Hydroponic Air Stone Diffuser

• Brand: Hisin

• Shape: Round / Ball shaped

• Size: Approx. 40mm–50mm (2 inch) diameter

• Color: Blue

• Material: Sintered ceramic / porous mineral sand (may include silicon carbide composition)

• Bubble Output: Produces fine, uniform micro-bubbles for efficient oxygen diffusion

• Connection Type: Standard 4mm barb fitting

• Compatibility: Works with most aquarium air pumps and standard airline tubing

Function & Performance:

The porous construction of the air stone allows air to pass through evenly, breaking it into tiny bubbles that dissolve oxygen more effectively into the water. This helps:

• Increase dissolved oxygen levels

• Improve water circulation

• Prevent stagnant water areas

• Support fish respiration and plant root health

Usage Instructions:

1. Soak the air stone completely in clean water for 30–60 minutes before first use.

2. Connect the air stone to an aquarium air pump using standard airline tubing.

3. Fully submerge the air stone in the aquarium or hydroponic reservoir.

4. Turn on the air pump to begin aeration.

Applications:

• Freshwater aquariums

• Saltwater aquariums

• Fish tanks and breeding tanks

• Hydroponic systems and nutrient reservoirs

Benefits:

• Promotes healthier fish and aquatic life

• Enhances oxygen availability for hydroponic plant roots

• Durable, long-lasting porous material

• Easy to install and low maintenance

• Decorative design that enhances tank appearance

The Hisin Blue Ball Aquarium Air Stone Round 40mm is an ideal solution for aquarists and hydroponic growers looking to improve oxygen distribution and overall system health with a reliable and efficient air diffusion accessory.