OASE BioCompact Mini Aquarium Filter

Aquarium mini internal filter

Product Characteristics

Individually adjustable water flow rate
Effective water filtration for small aquariums and paludariums in a compact size
Complete set – immediately ready for use
Flexible: Since it can also be installed horizontally, it is also suitable for use in paludariums
Economical: Extremely quiet and energy-efficient pump
Adjustable: The water flow rate can be adjusted individually on the water diffuser
Optimal filtration: The fine active charcoal foam in the BioCompact 25 ensures effective water filtration. For the BioCompact 50 active charcoal included in the scope of delivery can also be replaced with other filter media, the chamber can be filled as desired by the customer
Efficient: Large filter surface in the smallest space for effective water filtration

BioCompact 25
Suitable for aquariums up to max. (l) 25
Dimensions (L x W x H) (mm) 50 x 51 x 116
Rated voltage 230 V / 50 Hz
Power Consumption (W) 5
Power cable length (m) 1.50
Net weight (Kg) 0.19
Max. flow rate (l/hr) 240
Max. head height, metres (m) 0.40
Filter volume (l) 0.1
Suitable for freshwater and saltwater

BioCompact 50
Suitable for aquariums up to max. (l) 50
Dimensions (L x W x H) (mm) 85 x 51 x 116
Rated voltage 230 V / 50 Hz
Power Consumption (W) 5
Power cable length (m) 1.50
Net weight (Kg) 0.27
Max. flow rate (l/hr) 240
Max. head height, metres (m) 0.40
Filter volume (l) 0.2
Suitable for freshwater and saltwater

OASE BioCompact Mini Internal Filter for Nano Tanks and Paludariums

The BioCompact Mini is a neat internal filter for small aquariums, shrimp tanks and paludariums where space is tight, exactly the kind of setup that fits an HDB or condo shelf. It arrives complete and ready to run, with an adjustable flow diffuser so you can soften the current for shrimp or bettas that dislike strong flow. The active-charcoal foam handles polishing and light chemical filtration in the compact body without taking up much room.

The horizontal-mount option is the clever part: lay it on its side and it works in a shallow paludarium or low-water terrarium, which suits the planted ripariums many local hobbyists enjoy. It runs quietly and sips power, sensible for a tank that may sit in a bedroom or study. One care note for our climate: rinse the foam in old tank water during water changes rather than tap, since chloraminated tap water kills the beneficial bacteria the filter relies on.

Browse small-tank filters under filtration and equipment, and read our nano internal filter guide with the filter media guide.