Tidal 55 HOB

Performance & sizing

Core numbers for matching this unit to your tank and electrical plan.

Power

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Flow rate

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Noise

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Dimensions

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Price range

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Tank fit (L)

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Consumables & maintenance

Rinse mechanical media on a regular schedule; replace biomedia and cartridges per the manufacturer (often many months apart).

Description

The Seachem Tidal 55 is a hang-on-back power filter rated for 50–200 L aquariums, featuring a self-priming pump and integrated surface skimmer that removes protein film for better gas exchange. Its large media basket accommodates custom filtration stacks, and the adjustable flow control lets you match current strength to planted or shrimp setups.