AutoAQUA Smart ATO Nano G2 SATO-276D Hang-On-Back Auto Top Off System

AutoAQUA Smart ATO Nano G2 (SATO-276D) – Hang-On-Back Automatic Top-Off System

Purpose-built for nano and pico tanks under 50 gallons, the AutoAQUA Smart ATO Nano G2 is an all-in-one hang-on-back (HOB) auto top-off system that keeps small aquariums stable — where even minor evaporation can throw off salinity fast.

Key Features:

• Compact HOB all-in-one design – hang on tank, connect the tube, plug and play
• Precision dual optical sensor – detects water level changes as fine as 0.3mm, with a backup failsafe sensor in case the main sensor fails
• QST (Quick Security Technology) – built-in timer detects sensor or pump failure and stops overfilling automatically, no complex setup needed
• Quiet, low-power diaphragm pump – smooth, consistent flow with minimal system pressure
• Built-in anti-siphon valve – stops forward siphoning for up to 1 ft (30cm) of water
• Toolless assembly – no screws, fully assembles/disassembles in under a minute
• Adjustable glass mount – fits rimmed and rimless tanks/sumps, 3–10mm glass thickness
• Cable organiser built into the body – keeps cabling tidy, magnetic sensor mount for flexible placement
• Includes prefilter + weighted base – protects the pump from debris and keeps the water inlet stable in the reservoir

This product has been sourced through parallel importing and is backed by a 6-month Budget Reefing warranty. All warranty claims will be handled directly by Budget Reefing and not by the manufacturer. This warranty is provided in addition to your rights under the Australian Consumer Law.