Rank #4 in Best Aquarium Filter 2026: Turnover Is the Only Number
NICREW Magi Mini Fish Tank Filter, 150 L/H for 20L Tanks
Price and rating as shown on Amazon when we collected them. Both change.
The NICREW Magi Mini is the small-tank filter here: £13.99 with 2,267 ratings at 4.3 stars, a flow of 150 litres an hour for a 20-litre tank, and a full kit including a spare impeller.
It takes fourth because it is the best value at the small end and publishes its flow and its tank size, though at 150 L/H a tank much above 30 litres puts the turnover below the recommended range.
How those 2,267 ratings break down
An average hides its own shape. This is the spread behind the 4.3 stars.
Specification
Exactly as published on the Amazon listing, field for field.
| Maximum flow | 150 litres per hour |
|---|---|
| Stated tank size | Around 20 litres |
| Included | Pump, carbon, foam, air tube, 2 impellers |
| Item weight | 290 g |
| Ratings | 4.3 from 2,267 |
| Price | £13.99 |
What buyers actually say
Quoted from customer reviews on Amazon
Verified purchase“Very powerful filter very pleased with product”
Verified purchase“For its size its quite powerful and perfect for my 40L tank , the bubble option is great”
What it is up against
The rivals it was ranked against in Best Aquarium Filter 2026: Turnover Is the Only Number.
Rank #1
Fluval U2 Internal Aquarium Filter, Up to 110 Litres, 400 L/H Adjustable
£36.00
Rank #2
NICREW Magi700 Fish Tank Filter, 700 L/H for 60-150L Tanks
£19.99
Rank #3
Interpet PF1 Internal Power Filter, for Aquariums Up to 68 Litre
£15.69
Rank #5
NICREW Magi200 Fish Tank Filter, 200 L/H for 20-40L Tanks
£15.99
Questions people ask
What size tank is it for?
Around 20 litres, where 150 L/H gives 7.5 turnovers an hour. A reviewer uses it on a 40-litre tank at 3.75.
What is included?
The pump, a carbon cartridge, filter foam, an air tube and a spare impeller.
Can it aerate the tank?
Yes: the spray bar agitates the surface, and the listing also describes it as a wave maker and oxygen supply.
Is it suitable for shrimp?
Yes, the fine foam and low flow suit nano and shrimp tanks.
Why is it fourth?
Because it is limited to small tanks, though at £13.99 it is the best value here.
How many ratings does it have?
2267 at the time of collection, averaging 4.3 stars, with 66 per cent five-star and 7 per cent one-star.
Comments
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