Seachem Tidal 75

Advanced Hang-On-Back Filter for Aquariums up to 300 Litres

The Seachem Tidal 75 is a high-performance hang-on-back (HOB) filter designed to deliver exceptional mechanical, biological, and surface filtration for freshwater aquariums up to 75 US gallons (300 litres). Powered by Seachem’s reliable self-priming pump and packed with premium features, the Tidal 75 offers professional-level filtration with unmatched ease of use.

Powerful & Efficient Filtration

With a flow rate of 350 US GPH (1500 L/H) and a power consumption of just 7 watts, the Tidal 75 provides strong, consistent circulation while remaining energy-efficient and quiet. The large 1.9-litre filter basket allows for generous media capacity and complete flexibility, making it suitable for planted tanks, community aquariums, and higher bioload setups.

Supplied with Seachem Matrix™ bio media and filter foam, the Tidal 75 supports rapid establishment of beneficial bacteria for effective biological filtration and crystal-clear water.

Smart Design & Premium Features

• Maintenance Alert Device – Visually indicates when the filter needs cleaning

• Self-Priming Pump – Automatically restarts after power interruptions

• Surface Skimmer Intake – Removes surface film for improved gas exchange

• Fully Adjustable Flow Control – Fine-tune circulation for fish or plants

• Adjustable Intake Flow – Customise water draw height

• Integrated Heater Holder – Keeps heaters discreet and well-circulated

• Adjustable Levelling Device – Ensures perfect alignment on aquarium rims

Unlike traditional HOB filters, the Tidal’s pump is located inside the aquarium, allowing it to push water through the filter rather than pull it—resulting in quieter, more efficient operation.

Key Specifications

• Aquarium Size: Up to 75 US gallons / 300 litres

• Flow Rate: 350 US GPH / 1500 L/H

• Power Consumption: 7 watts

• Filter Volume: 0.50 US gallons / 1.9 litres

Dimensions:

• Length: 25.5 cm

• Width: 17.8 cm

• Height: 24.2 cm

Warranty

The Seachem Tidal 75 includes a 3-year manufacturer warranty, excluding the impeller.
Warranty can be extended to 5 years by registering the filter with Seachem.

Ideal For:

• Medium to large freshwater aquariums

• Planted tanks

• Community fish setups

• Aquarists wanting powerful filtration with minimal maintenance