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15 models compared
Our pick Fluval 207
Why: Its priming handle helps start water flow after setup, and its prefilter can be accessed independently during cleaning.1 Its 3.1 litre media chamber provides more media space than the Fluval 107’s 2 litres.12 Both models are rated at 10 W on 120 V, 60 Hz supplies.34
6 models compared
Our pick Seachem Tidal
Why: Its self priming pump avoids the AC20 and AC30 instructions to fill the filter body before startup.56 Its stated tank limit is 35 gallons, compared with the AC20’s 5 to 20 gallon range.57
18 models compared
Our pick Fluval U2
Why: The Fluval U2 combines adjustable output with supplied media and a 45 to 110 litre tank rating.89
2 models compared
Our pick Hikari Bacto Surge Small
Why: The Hikari Bacto Surge Small uses a weighted base, making it a choice for placement on the aquarium floor.10 The Hikari Bacto Surge Small does not include an air pump, so plan to supply one separately.11
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