Blue Marine Nano Top Up Container 1 L is a simple and effective solution for maintaining a stable water level in nano and marine aquariums. The container works without electrical components and automatically compensates for evaporated water when the water level drops below the set minimum.

The unit is mounted on the aquarium edge, and the desired minimum water level is set by cutting the air inlet hose to the correct length. As the water level drops, the container releases water until the correct level is restored. This helps keep water parameters stable and reduces the need for daily manual top‑ups.

Its compact size makes it ideal for nano aquariums and small systems where space is limited. The transparent container allows easy monitoring of water levels, and the 1‑litre capacity provides several days of operation depending on evaporation rate.

Technical specifications (EN)

• Product type: Automatic aquarium top‑up container
• Capacity: 1 litre
• Operating principle: Mechanical, no electrical components
• Purpose: Automatic compensation of evaporated water
• Suitable for: Nano and marine aquariums
• Mounting: On aquarium glass rim
• Maximum glass thickness: approx. 10 mm
• Material: Transparent plastic
• Dimensions: approx. 11 × 11 × 18.7 cm