Tidal 55

Seachem Tidal 55 Power Filter

The Tidal™ 55 Power Filter is designed to deliver powerful, flexible, and easy-to-maintain filtration for both freshwater and saltwater aquariums. Built from the ground up for reliability and performance, it combines mechanical, biological, and surface filtration into one versatile hang-on-back filter.

With smart features such as a self-priming pump, dual water intake with surface skimmer, adjustable flow control, and a maintenance alert system, the Tidal™ series helps maintain crystal-clear water while reducing maintenance effort. Suitable for aquariums 55–110 gallons, and backed by a 3-year warranty (extendable to 5 years upon registration).

Key Features

• Lid doubles as a maintenance tray for the media basket

• Blue maintenance monitor alerts when cleaning is needed

• Large media basket — supports any filtration media (no cartridges)

• Includes Seachem Matrix™ bio-media and starter foam

• Adjustable leveling base for different tank rims

• Adjustable intake and flow rate

• Self-priming pump & self-cleaning impeller

• Optional heater holder attachment

• Surface skimmer removes oily film and floating debris

Advanced Filtration Design

• Bottom-to-top water flow ensures full contact with filter media

• Ventilated lid and aeration grooves maximize oxygen exchange

• Silent, insulated pump with very low power consumption

• Detritus-capture basket prevents debris from re-entering tank

• Maintenance alert rises when media becomes clogged

Versatile Performance

• Telescoping intake pulls water from any tank depth

• Dual intake balances surface skimming and deep filtration

• Fully adjustable flow — from gentle circulation to strong current

• Internal recirculation prevents pump wear at low flow settings

• Compatible with all Seachem media configurations

Easy to Use

• Self-priming — restarts automatically after power outages

• Removable basket snaps into lid for mess-free cleaning

• Corrosion-resistant impeller for fresh or saltwater use

• Large capacity media chamber — no replacement cartridges needed