Oase BioMaster Filter Foam - (20ppi Blue / 30ppi Orange) Parts:POS 2 - Foam 30ppi Orange - 45270 ✅ 4) Great for Both

✅ 4) Great for Both Freshwater & Marine

Add GH reagent by the droplets

Intensive water clarification through bio-filtering: microorganisms settle on the filter material and break down pollutants

When to use: daily for one week in newly set up aquariums

Max Lift Height 2

Oase BioMaster Filter Foam - (20ppi Blue / 30ppi Orange) Parts:POS 2 - Foam 30ppi Orange - 45270 ✅ 4) Great for BothReplacement sponge for Biomaster filter Suitable for Biomaster 250, 350, 600, 850 30ppi has finer pores as compare to 20ppi Customize your choice of filter foams to meet the needs of your aquarium Timing to replace the filter foam varies upon aquarium size and the number of fish and plants