Often they’re in the wrong place. The truth is, fish waste sinks. That’s why a biOrb filter is at the bottom of the tank. It works where there is most to filter.


Tell me more

biOrbs are made from acrylic, not glass. Here’s why...

Acrylic is 10 times stronger than glass. In fact acrylic just over one inch thick (32mm), is actually bullet resistant.

It's also noticeably clearer. Acrylic has a transparency rate of 93% making it the clearest material known. Glass only allows 70% of light to pass through and thick glass always has a green tint.

Customers have told us... "it's like watching my fish in high definition"

The benefits of acrylic

Designed to be healthy

biOrbs have been independently tested by the world renowned University of Veterinary Medicine in Hannover, Germany. Their 16 page in-depth report ensures that a biOrb is a healthy home for your fish.


Download PDF
(English 884kb)

Download PDF
(German 939kb)

Quality and service

Find out more about OASE, our vision and commitment to our customers.

Where to buy

Find your local retailer. We have over 2600 worldwide.

Shop online

Visit to shop online in the US.

This site uses cookies. Some of the cookies we use are essential for parts of the site to operate and have already been set. You may delete and block all cookies from this site, but parts of the site will not work.