Filters · hob
Seachem Tidal 55
Manufacturer-rated for aquariums up to 55 US gal; needs 3 in wall clearance and fits trim up to 1 in.
HOB filter with adjustable intake and return flow, surface skimmer, heater holder, and basket media.
Specifications checked with the manufacturer on 2026-09-07.
Consider: Needs 3 inches behind the tank and trim no thicker than 1 inch. Measure both; a wall position that fits the Tidal 35 may not fit this model.
US product record. Confirm the model and package contents before purchase.
Specifications that affect fit
- Manufacturer capacity
- Up to 55 US gal
- Power
- 6 W
- Supply voltage
- 120 V / 60 Hz
- Dimensions
- 8.0625 × 6.125 × 8.375 in (L × W × H)
- Pump output
- Not specified
- Filter circulation
- Not specified
- Maximum flow
- 250 GPH
Use the exact nameplate watts and your real schedule in the aquarium electricity cost calculator. Leave an unpublished wattage blank.
Pump output, filter circulation and maximum flow describe different test conditions. These figures do not establish the flow in your installed aquarium.
Before choosing this model
- Measure wall, trim, and internal clearance.
- Check whether surface agitation and skimming suit the tank.
Read the equipment selection guide alongside these model details. A rated capacity does not settle livestock needs, room conditions or physical clearance.
Choose and care for mechanical, biological and chemical media before buying replacement supplies.
Included items & upkeep
- heater holder
- telescoping intake pipe
- leveling dial
- foam filter
- Matrix bio-media
- instruction manual
Plan for the routine work
- Use the alert as an inspection prompt, not a substitute for observing flow.
- Unplug before pump or impeller service.
Enter your own supply prices and replacement schedule in the first-year cost planner. Use the exact manual for maintenance intervals and service steps.