The Reef Octopus FW-220 is a reliable automatic top-up (ATO) system designed to maintain stable water levels in freshwater and marine aquariums. By automatically replenishing evaporated water, it helps protect equipment, maintain salinity, and ensure a healthier aquatic environment.

Featuring dual optical sensors for accuracy and safety, the FW-220 offers simple installation and dependable performance, making it ideal for both beginner and experienced aquarists.

Features:

• Automatic top-up system for fresh & marine aquariums
• Dual optical sensors for precise and safe operation
• Helps maintain stable water levels and salinity
• Compact design with easy installation
• Reliable Reef Octopus build quality

Ideal For:

• Marine aquariums
• Freshwater tanks
• Sumps and refugiums

A smart and essential solution for maintaining consistent water levels and peace of mind.