Aquarium Air Stones & Accessories
Upgrade your aquarium setup with our complete range of high-quality air stones and accessories, perfect for boosting oxygen levels, enhancing water circulation, and supporting a healthier aquatic environment. Whether you're running a planted tank, a freshwater setup, or a marine aquarium, our collection includes everything from fine bubble diffusers to multi-outlet splitters, suction cups, airline tubing, and more.
Stainless Steel Aquarium Air Flow Splitter 4mm Lever Control Valve
$7.09 – $11.38
The Castle Dawn Aquatics 304 Stainless Steel Air Flow Control Valve offers a premium solution for managing multiple air lines from a single pump. Crafted from durable 304-grade stainless steel,...
Nano Air Disc Stone – Silent Oxygen Diffuser Y-Series
$9.99 – $14.99
Castle Dawn Aquatics Nano Air Disc Stone Diffuser is designed to deliver ultra-fine, silent oxygen bubbles to your aquarium or hydroponic system. Whether you’re using the compact Y35, medium Y60,...
Ultra-silent 25mm Glass nano air stone Diffuser
$9.99
Bring clarity and calm to your aquarium with the Castle Dawn Aquatics 25mm Nano Air Stone Disc — a compact, ultra-silent diffuser that produces an elegant cloud of micro-bubbles. Ideal...
Aquarium Silicone Airline Tubing – 4/6mm Non-Kink 12ft Oxygen Tube in 11 Colours
$11.38
The Castle Dawn Aquatics Multi-Coloured Silicone Airline Tubing is a flexible and durable solution for all your aquarium air needs. Made from 100% soft silicone, it stays pliable and resists...
Clear Non Kink 6mm ''Oxygen Tube'' Silicone 30ft Airline Tubing
$8.38
The Castle Dawn Aquatics Clear Non-Kink Silicone Airline Tubing offers superior flexibility, durability, and performance for all your aquarium aeration needs. Made from 100% pure silicone, this tubing is designed...
Multi Coloured Air Stone Bubble Tube Diffuser - 2 Pack
$8.95 – $19.80
The Castle Dawn Aquatics Air Bar Tube Bubble Release Diffuser – 2 Pack is the ideal solution for consistent and customisable oxygen delivery in your aquarium. Designed with high-quality plastic...
Micro Bubble Air Stone Bar Diffuser – 4 Pack
$8.95 – $19.80
The Castle Dawn Aquatics Micro Bubble Air Stone Bar Diffuser – 4 Pack is a reliable and efficient way to improve oxygen levels in your aquariums or hydroponic systems. Made...
Glass Air Bell Oxygen Diffuser for Reduces Current
$11.38
Air stones can create strong currents that may harm long-finned fish such as guppies and Halfmoon bettas by pulling their delicate fins into the airflow. The Castle Dawn Aquatics Glass...
15-piece aquarium Fish Tank air pump accessory starter kit
$7.20
The Castle Dawn Aquatics 15-Piece Aquarium Air Pump Accessories Kit offers a convenient, ready-to-use solution for basic aeration setups in freshwater or saltwater aquariums. With 15 practical components—including tubing, air...
10cm Round Aquarium Air Stone Disc – Ultra Silent Diffuser
$10.98
Add efficient oxygenation and stunning visual effect to your setup with the Castle Dawn Aquatics 10 cm Round Air Stone Disc. Made from high-temperature sintered stone, this durable diffuser quietly releases...
304 Stainless Steel Aquarium Air Flow Control Valve 8mm – High Pressure Resistant.
$8.38 – $13.38
The Castle Dawn Aquatics 304 Stainless Steel Air Flow Control Valve offers a premium solution for managing multiple air lines from a single pump. Crafted from durable 304-grade stainless steel,...
46-piece aquarium air pump accessory kit
$19.99
The Castle Dawn Aquatics 46-Piece Aquarium Airline Tubing & Accessories Set is the ultimate all-in-one solution for setting up or expanding your aquarium aeration system. Whether you're managing a fish...