Grech Clarity Filter – aquarium filter

This modular filter suits hobbyists keeping fish or other aquatic animals in tanks of 50 to 100 litres who want mechanical and biological filtration in one unit. It is designed to keep water quality stable by removing both particulate and biological contaminants.

Why it matters

• Separate filter stages: each stage has its own cartridge for a different type of filtration, so one media type can be replaced or rinsed without disturbing the others.
• Adjustable flow: a knob sets the output, which is useful in smaller tanks where strong current is unwanted.
• Adjustable outlet direction: the water outlet can be directed horizontally or vertically to match the tank layout and the desired water movement.
• Built-in aeration: the unit adds air to the water while it filters.

Specifications

• Power: 8 W
• Flow rate: 500 l/h
• Cable length: 150 cm
• Dimensions: 119 × 90 × 214 mm
• Weight: 1.5 kg
• Recommended tank volume: 50–100 l

What it works with

The filter is intended for freshwater aquariums in the 50 to 100 litre range, and the 500 l/h flow rate matches that volume. The adjustable flow makes it practical for tanks at the lower end of that range, where a lower output is often needed. Its modular design makes routine maintenance simpler, since each media cartridge can be serviced separately.