Air stone cylinder 4.5 cm ZOLUX - aquarium aeration accessory

ZOLUX air stone cylinder 4.5 cm is an aquarium aeration accessory designed to generate fine, consistent bubbles to improve oxygenation and water circulation in small to medium aquariums. This compact cylindrical air stone connects to standard airline tubing and can be positioned under gravel, near decorations, or at isolated points where additional aeration is needed. The device promotes more uniform oxygen distribution and supports biological filtration by enhancing surface agitation and gas exchange.

Advantages

The air stone produces a steady stream of fine bubbles that increase dissolved oxygen levels and encourage gentle water movement without creating strong currents. Its compact 4.5 cm cylinder shape allows flexible placement in tight spaces and beneath substrate or ornamentation. Constructed to work with common airline tubing, it is simple to install and maintain, and it helps reduce dead zones where debris and low oxygen can accumulate.

Suitable for

• Small and medium freshwater aquariums requiring additional aeration
• Under-gravel filter systems to improve circulation near the substrate
• Decorative zones or planted areas that need localized oxygen supply
• Quarantine or breeding tanks where stable oxygen levels are important

Key specifications

• Shape: cylindrical air stone
• Length: 4.5 cm
• Compatibility: connects to standard airline tubing
• Bubble type: fine bubble diffusion for improved oxygen transfer
• Intended use: internal aquarium aeration

How to use

Connect the cylinder air stone to standard airline tubing and attach the other end to an air pump or manifold. Position the air stone where increased oxygenation or circulation is required — beneath gravel, beside decorations, or in a corner to create gentle upwelling. Secure tubing as needed to prevent movement. Start with moderate airflow and adjust the pump output to achieve a steady stream of fine bubbles without disturbing substrate or plants excessively. Regularly inspect the air stone for clogging and clean or replace it when bubble output decreases.

Usage recommendations

For best performance, use with an appropriately sized air pump for the aquarium volume and consider adding a check valve to prevent backflow. Periodic cleaning by soaking in clean water or gentle brushing will prolong effectiveness; replace the air stone if porosity substantially decreases.