JBJ Nano Arctica-E Chiller (20 Gallon)
Give your nano aquarium the temperature stability it needs without the noise and bulk of a traditional chiller. Built for hobbyists running tighter, more sensitive setups, from reef tanks to planted freshwater to Axolotl habitats, the Nano Arctica-E delivers dependable, precise cooling in a compact, compressor-free design.
How It Cools
Instead of a compressor and refrigerant, this unit runs on solid-state thermoelectric technology, a semiconductor chip that manages heat transfer directly, paired with a heat sink and fan for quiet, consistent performance. The result is effective cooling with none of the vibration or mechanical noise that comes standard with conventional chillers, making it a natural fit for tanks in living spaces, offices, or anywhere quiet operation matters.
Set It and Forget It
A triple-digit LED display paired with a responsive touch control panel makes dialing in your target temperature simple, with a working range of 60°F to 94°F and accuracy within +/-1°F.
Ready to Install
Everything needed for setup is included right in the box: a dedicated 7W pump and 12mm tubing, so there's no separate parts list to track down before you can get running.
Built for More Than Fish
This isn't limited to standard aquarium use. It's a strong fit for Axolotl tanks, reef systems, and even reptile enclosures that require tightly controlled water temperatures.
Reef and Freshwater Safe
The cooling exchanger is corrosion-resistant, so it holds up equally well in saltwater reef systems and freshwater environments.
Specifications
| Spec |
Detail |
| Model |
DBI-020 / JBJ70304 |
| Recommended Tank Size |
Up to 20 Gallons |
| Cooling Capacity |
9°F–11°F pull-down (varies with ambient conditions) |
| Temperature Range |
60°F–94°F (15°C–34°C) |
| Input Power |
DC 24V / 10A |
| Pump Wattage |
7 Watts |
| Max Flow Rate |
118 GPH |
| Max Head Height |
36 inches |
| Dimensions |
7.1"L x 3.9"W x 10.2"H |
| Tubing Size |
12mm (included) |
In the Box
- Nano Arctica-E main cooling unit
- Submersible water pump (7W)
- 12mm flexible tubing
- External temperature sensor
- Power supply with adjustable flow knob
- Installation hardware (suction cups, L-pipe connector, water hose connector)
Why It Beats a Fan
Cooling fans rely on evaporation, which can throw off salinity in a reef tank and mean constant top-offs. The Nano Arctica-E instead uses a closed-loop thermoelectric system that pulls heat straight out of the water, keeping conditions stable for sensitive corals and livestock without adding to your maintenance routine.
Tip: for best results, place the unit in a well-ventilated spot with at least 4–6 inches of clearance around the exhaust fan.
