AutoAqua Smart ATO Nano G2 Auto Top Off System

The AutoAqua Smart ATO Nano G2 is a hang-on-back auto top-off system built specifically for nano and pico aquariums under 50 gallons, combining a dual optical sensor with a built-in anti-siphon diaphragm pump in one compact unit.

• Best for: nano and pico aquariums under 50 gallons
• Install: hang-on-back, adjustable holder fits 3-10mm glass thickness, no tools required
• Sensor: dual optical sensor detects water level at 0.3mm precision, resists false triggers from water drops and mineral deposits; failsafe backup sensor protects the tank if the main sensor fails
• Pump: self-priming DC diaphragm pump, built-in anti-siphon valve rated for 1ft (30cm) of water
• Safety: Quick Security Technology (QST) with real-time failsafe timer and LED status indicator
• Specs: 100-240VAC input, 12VDC/1A output, suction height 6.5ft, max flow 3.2 gph (12 lph), sensor mount up to 1/2in, tubing 6.5ft (ID 5/32in, OD 1/4in, RO-compatible)

Includes: controller, power adapter, prefilter with weighted base, 6.5ft tubing.

Because the pump and sensor are combined into one hang-on-back unit with no wiring inside the reservoir, it's a cleaner install for nano tanks than a standalone pump-and-sensor setup.

At Marine Concept Supply, all sales are final. Due to the sensitive nature of live animals and aquatic products, we do not accept returns or exchanges under any circumstances. Please review your order carefully before completing your purchase. No Cancellations.

If you have any questions or concerns about your order, please contact us at shop@marineconceptsupply.com and we’ll do our best to assist you.

We Ship UPS and will send tracking as soon as the item ships. 

Return shipping for any approved warranties are not covered and will be subtracted from the approved credit total.

Restock Fees apply to some products, due to their size or a manufacturer policy.Each product with a restock charge is marked online, in the description.

Please inspect your order upon reception and contact us immediately if the item is defective, damaged or if you receive the wrong item, so that we can evaluate the issue and make it right