JBJ Advanced Automatic Water Top Off System will sense when water is low and automatically top off the tank to a preset level. Everything is included except the reservior which is usually just a one gallon bottle or small bucket. This is great for people who tend to travel or just want the next cool device for the fish tank.
Each Nano ATO Top-off system comes with the sensor, pump, tubing, power supply, and accessories to put it all together – which is simple. Great for tanks up to 100 gallons. You might need something bigger for larger tanks.
