VOONLINE Top Refill Water Tank (Model VL-230)
Used as an auxiliary top refill tank for the main aquarium, this device automatically refills water based on atmospheric pressure, expanding the available space for fish.
- Model: VL-230
- Tank Size: 13x12x19cm
- Suitable for main tank thickness: less than 16mm
- Material: Acrylic
| Installation Steps |
|---|
| 1. Insert the top slot of the three fixing clamps into the corners of the main tank as shown in the diagram. |
| 2. Ensure the water level in the main tank is at or above the VOONLINE logo position on the fixing clamps. |
| 3. Position the top refill tank with the opening facing down, and snap the three corners into the corner slots on the main tank. |
FAQ
Can this tank be used with any main aquarium?
It is suitable only for main tanks with a thickness of less than 16mm.
Is the tank resistant to breakage?
Yes, it is made of acrylic, which is durable and resistant to breakage.
How does the auto-refill work?
It operates based on atmospheric pressure, allowing water to flow into the main tank automatically when the water level drops.

Adrian Watson –
I installed this tank with my 50-liter main tank. It works smoothly and keeps the water level stable. The acrylic material feels solid and the installation was simple. My fish haven’t shown any stress since using it.
Cameron Mills –
It fits well with my aquarium setup. The auto-refill feature saves me time. I noticed the water level stays consistent, especially during water changes.
Samantha Wilson –
Easy to install and reliable. The tank doesn’t leak, and the water refills automatically without any manual intervention. Great for maintaining a stable environment for my fish.