Filters · Hang-on-back
Seachem Tidal 110
Manufacturer-rated for aquariums up to 110 US gal; needs 4 in wall clearance and fits trim up to 1⅜ in.
The largest Tidal HOB filter, with adjustable intake and return flow, surface skimmer, heater holder, and basket media.
Consider: Needs 4 inches behind the tank and 2 inches inside it below the rim. Measure both before choosing it over the Tidal 75.
US version. Check what’s in the box before you buy.
Tank size Seachem rates it for
Up to 110 US gal
Choose your tank to see where it falls.
Check it against your tank →Specifications that affect fit
- Manufacturer capacity
- Up to 110 US gal
- Power
- 12 W
- Supply voltage
- 120 V / 60 Hz
- Dimensions
- 11.625 × 7.625 × 9.5 in (L × W × H)
- Pump output
- Not published
- Filter circulation
- Not published
- Maximum flow
- 450 GPH
To see what it costs to run, enter the watts on its label and your daily hours in the electricity cost calculator.
Pump output, filter circulation and maximum flow are measured in different ways. Your filter will move less water than the box says once media and hoses are in. Measure it with the flow calculator.
Before choosing this model
- Measure wall, trim, and internal clearance: Seachem gives 4 in behind the tank, trim up to 1⅜ in, and 2 in inside the tank.
- Check whether surface agitation and skimming suit the tank.
Our buying guides size it for these tanks:
A filter rated for your tank can still be too tall for your cabinet or too strong for small fish: see how to choose one.
Check it against your tank → Something not working? See the troubleshooting guide.
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.
To budget for replacement media and supplies, use the first-year cost calculator. For how often and how to clean it, follow the maker’s manual.