New 🐟 Mercury Safety Guide & Omega-3 Rankings Updated for 2026. View Omega-3 Rankings →

🔋
Maintenance

Battery Backup / UPS

A battery unit that powers essential aquarium life support during power outages - critical for reef tanks where survival often depends on continued flow and heating.

Price: Mid For: Both $80-$800

📖 Overview

A power outage can kill an entire reef tank in hours. Fish exhaust oxygen, corals bleach without flow, temperatures crash. A battery backup (UPS or DC air pump backup) provides emergency air pump or return pump power for 6-24 hours - enough to bridge most outages. Combined with a generator for extended outages, it can save tens of thousands of dollars in livestock.

🏷️ Top Brands

Ecotech Battery Backup Booster, IceCap Battery Backup, generic UPS units.