Oase BioMaster Size:250 The external Ocean Free Stream

The external Ocean Free Stream 3 internal filter uses Hydro-Pure technology to ensure your tank has stable water quality while being environmentally friendly

Change every 4-6 weeks

Developed after extensive study and analysis of the sense of sight

Omega 6 fatty acids to support skin and coat health

The Ocean Free Hydra Nano Plus internal filter uses Hydro-Pure technology to ensure your tank has stable water quality while being environmentally friendly

Oase BioMaster Size:250 The external Ocean Free StreamEasyClean pre filter module Module can be removed separately from the rest of the filter. This reduces maintenance, increases filter efficiency, and extends the life of main filter foams. Customize the pre filter with coarse 30 ppi, fine 45 ppi, ultra fine 60 ppi, and activated carbon 45 ppi filter foams No mess maintenance Integrated safety locking features on the handle, pre filter, and check valve in the inlet outlet connection unit, ensure no