# AQQA Aquarium Double Sponge Filter, Submersible Bio Filter, 3W

Source: https://www.ranked10.co.uk/pet-supplies/best-aquarium-filter/aqqa-double-sponge
Ranked #7 in "Best Aquarium Filter 2026: Turnover Is the Only Number": https://www.ranked10.co.uk/pet-supplies/best-aquarium-filter

- Price: £25.99 (checked on Amazon UK on 2026-09-11)
- Amazon rating: 3.9 from 735 ratings
- Buy on Amazon: https://www.amazon.co.uk/dp/B08SK2YCLY?tag=ranked10-21

The AQQA is a double sponge biological filter for £25.99 with 735 ratings at 3.9 stars and 13 per cent one-star, sold as 3W for tanks of 35 to 150 litres.

It takes seventh because its size specification is a wattage rather than a flow rate, and 13 per cent one-star ratings is the highest rate in this ranking. For shrimp and fry tanks, where gentle flow is the point, a sponge filter does a job the power filters do not.

## Specification

| Field | Value |
|---|---|
| Size as listed | 3W for 35-150 litres |
| Type | Double sponge, biological |
| Item weight | 510 g |
| Ratings | 3.9 from 735 |
| Maintenance | Rinse the sponge in tank water |
| Price | £25.99 |

## Questions people ask

**What does 3W for 35-150L mean?**

It is a wattage presented as a tank range. Three watts cannot deliver four turnovers an hour in a 150-litre tank, so treat the top of the range as marketing.

**How do I clean a sponge filter?**

Rinse it in water taken from the tank: tap water chlorine kills the bacteria the filter exists to grow.

**Is it good for shrimp?**

Yes: sponge filters are the standard choice for shrimp and fry because the flow is gentle.

**Why is its rating the lowest here?**

Because 13 per cent of 735 ratings are one-star, mostly about motor noise and suction.

**Why is it seventh?**

Because a flow rate matters more than a wattage, and this listing does not give one.

**How many ratings does it have?**

735 at the time of collection, averaging 3.9 stars, with 54 per cent five-star and 13 per cent one-star.