AQPET AUTO REFILL AUTOMATIC WATER TOP-UP

The AQ-AUTO REFILL by AQPET is an extremely practical and effective technical accessory, designed to automate the top-up of evaporated water in aquariums, both freshwater and marine. It is an innovative system that uses common PET plastic bottles, transforming them into automatic refilling reservoirs, easy to assemble and ready to use in minutes.

Particularly suitable for small and medium-sized aquariums, the AQ-AUTO REFILL is a simple yet functional solution, which reduces the need for frequent manual checks, protects the health of aquatic organisms, and continuously and reliably maintains the water stability of the ecosystem.

 

Quick and universal installation – adaptable to most standard bottles

The device has been designed to offer maximum compatibility and ease of use, with no need for tubes, pumps, or electrical power. Simply:

 

• screw the adapter onto a PET bottle (up to 2 liters) with a standard thread (e.g., mineral water or soft drink bottles);
• fill the bottle with RO or treated water;
• turn the container upside down and secure the system to the edge of the aquarium using the adjustable attachment.

   

The AQ-AUTO REFILL uses atmospheric pressure and gravity to dispense water at the exact moment the level drops, ensuring a constant and precise top-up based on natural evaporation.

 

Compact, discreet, space-saving – ideal for home tanks and minimalist setups

Thanks to its compact and lightweight design, the AQ-AUTO REFILL integrates perfectly into home setups and more contained technical layouts. It is suitable for:

 

• open or semi-open tanks, where evaporation is more pronounced;
• nano or medium-sized aquariums, where even small volume changes affect parameters;
• marine tanks, where the change in level affects salinity, with possible damage to sensitive fauna.

   

The included support is compatible with glass up to 10 mm thick and ensures stable and secure fastening without damaging the edge of the tank.

 

Passive and reliable operation – no electricity, no maintenance

One of the main advantages of the AQ-AUTO REFILL is its purely mechanical operation, which makes it:

 

• independent of power sources, perfect even for aquariums without nearby outlets;
• immune to electronic failures, with a potentially unlimited lifespan;
• maintainable in seconds, simply by replacing the bottle or rinsing the adapter.

   

The simplicity of the system also makes it ideal for beginners or those who want an economical, safe, and hassle-free solution.

 

Technical specifications

• Type: Automatic top-up adapter with PET bottle
• Bottle compatibility: Standard thread, up to 2 liters
• Supported glass thickness: up to 10 mm
• Use: Freshwater and marine aquariums
• Installation: Manual, without tools
• Operation: Mechanical – passive, without power
• Material: Technical plastic resistant to humidity and wear

 

Why choose AQ-AUTO REFILL by AQPET

• Simple, functional, and reliable automatic top-up system
• No electrical connection required
• Compatible with common PET bottles, up to 2 liters
• Ideal for small aquariums or marine tanks with frequent evaporation
• Easy assembly, minimal maintenance
• Discreet and compact design, suitable for all types of tanks