BioPlus 50


BioPlus 50 by Oase is an internal corner filter suitable for small aquariums of 50 litres volume or less.

The design is space saving, energy efficient and the pump is quiet.

1 in stock


BioPlus 50 by Oase is an internal filter for small aquariums.

The BioPlus 50 will filter aquariums of up to 50 litres. If your aquarium is more than 50 litres we have a full range of larger internal or external filters in stock.

Space saving design

Place this filter discreetly in a corner of the aquarium for undisturbed views of your underwater world. You can retrofit an Oase heater into the back corner of this pump or if you would like a heater included with this filter click here to see the BioPlus Thermo 50.

Magnetic Bracket

This filter is easy to clean! The magnetic bracket makes it easy to remove and attach the filter cartridge. Magnetic brackets tend to outlast traditional suction cup filtration mounting.


The BioPlus pump is extremely quiet and energy efficient.

Great filtration

The high surface area volume of the filter foam ensures effective mechanical and biological filtration.

Your aquarium’s life support system

When aquarium foam has a high surface area, more ‘friendly’ bacteria are able to colonise. This filter bacteria is known as denitrifying bacteria. It is important to have a healthy population growing in your filter as it helps to break down fish waste.

Run an aquarium filter 24 hours a day to keep the water quality balanced for your aquatic animals.

In order to keep you bacteria colony healthy, remember not to clean your sponges with tap water. Instead, take a small bucket of water out of the tank and gently squeeze your filter sponges in this bucket of water to remove excess waste. When topping up your tank afterwards it is important to use dechlorinator. Chlorine in tap water is designed to kill off bacteria and that’s the last thing we want to do to our aquarium filters!

Technical data:

Suitable for aquariums up to max. l 50
Dimensions (L x W x H) mm 120 x 110 x 210
Rated voltage 230 V / 50 Hz
Power consumption W 5
Power cable length m 1.50
Net weight kg 0.61
Limited Warranty Years 3 + 1
Max. flow rate l/h 350
Max. head height, metres m 0.40
Filter volume l 0.3
Suitable for freshwater Yes
Suitable for saltwater Yes


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