powerful and low-noise
parallel oxygenation is possible
two-phase cleaning: biologically with sponge and chemically with active carbon
various outlets for individual adaption
easy to clean
TÜV/GS-approved


Item No. Performance Aquarium size max. Performance
86100 5 W up to 45 l

200 l/h
86110 7 W 40–60 l 380 l/h
86120 10 W 60–120 l 700 l/h
86130 20 W 100–180 l 1000 l/h

The Marina i25 is a compact yet powerful internal filter for use with Marina goldfish aquariums or any other goldfish or tropical tank up to 25 liters (6.6 US gallons).

Fluval® U Series Underwater Filters provide complete and efficient 3-stage filtration, including BIOMAX biological filtering (U2, U3 and U4 models), to create superior aquarium water quality.

Fluval® U Series Underwater Filters provide complete and efficient 3-stage filtration, including BIOMAX biological filtering (U2, U3 and U4 models), to create superior aquarium water quality.