Product Price Flow Rate (gph (gallons per hour)) Filter Media Volume (cups) Maximum Tank Size (gallons) Energy Consumption (watts) Noise Level (dB (decibels)) Filter Media Type
EHEIM EHEIM Classic 150 Canister Filter
US
£96.99 300 l/h 1 l 150 l 5 Watt filter pads and loose filter media (mechanical, biological, adsorptive compatible)

Compact external canister filter with 300 l/h flow, 1 l filter volume and low 5 Watt power draw; includes spraybar, inlet/outlet pipes, hoses and basic filter media. Suits small freshwater or marine aquariums up to 150 l and is designed for quiet, energy-efficient continuous operation. Durable, user-serviceable design that accepts layered EHEIM filter media or loose media.

★ Ideal for

Ideal for affordable yet effective aquarium filtration because it delivers 300 l/h flow and 1 l media capacity with only 5 Watt power consumption, giving efficient turnover for tanks up to 150 l at low energy cost.

Fluval Fluval 07 Series 107 Power Filter
US
£100.72 145 US GPH / 550 LPH Basket Volume 1.2 L 10-30 US Gal / 40-130 L 10 W Includes Bio-Foam Max, Bio-Foam, Bio-Foam+, Carbon, BIOMAX

The Fluval 107 is a compact 07 Series canister filter delivering 145 US GPH (550 LPH) pump output, a 1.2 L media basket and a vertical pre-filter for improved mechanical filtration; it uses low energy (10 W) and includes multiple media types for mechanical, chemical and biological filtration. It features EZ-Lift media baskets, Aquastop valve and quiet eTEC-engineered pump, suited for freshwater or saltwater aquariums. Ideal for hobbyists with 10-30 US gallon tanks seeking a low-energy, higher-ca

★ Ideal for

Suitable for the question because it pairs a low energy draw (10 W) with a 145 US GPH flow rate and 1.2 L media basket, offering an affordable, effective balance of performance and operating cost.

Marineland Marineland Penguin Bio-Wheel 350
US
£39.54 350 gph 75 gal. Rite-Size C Filter Cartridge

The Marineland Penguin Bio-Wheel 350 is a hang-on-back power filter with a patented bio-wheel for biological filtration and a three-stage cartridge system for mechanical and chemical filtration. It provides high flow (350 gph) and adjustable mid-level intake for improved circulation, suited to freshwater tanks up to 75 gallons and users who want easy cartridge replacement and strong biological capacity.

★ Ideal for

Ideal for budget-minded buyers seeking effective filtration because it delivers 350 gph flow, a bio-wheel for biological filtration, and uses Rite-Size C cartridges for simple media replacement.

Tetra Tetra Whisper EX 40 HOB Filter
US
£23.87 210 gph 40 gal Bio-Foam and Bio-Bag cartridges

The Tetra Whisper EX 40 is a hang-on-back power filter rated for tanks up to 40 gal with a maximum flow of 210 gph. It uses a low-wattage motor with adjustable flow and includes Bio-Foam for biological filtration plus Bio-Bag cartridges for mechanical and chemical filtration, making it a compact, budget-friendly option for small to medium freshwater or saltwater tanks.

★ Ideal for

Good for budget-conscious buyers seeking effective HOB filtration for aquariums up to 40 gal because it delivers 210 gph flow and three-stage filtration (Bio-Foam plus Bio-Bag) at a low price point.