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The Juwel blue filter sponge house the most important bio - cultures, which are responsible to effectively clean the aquarium water. You should clean or replace one sponge at a time every 3 - 6 months to maintain the right biological balance in your aquarium.
Juwel bioPlus fine -fine, blue Filter Sponge:
- suitable for Super and Compact S
- Bioflow 3.0, Compact, Copmact H and Compact Super
- Bioflow 6.0, Standard and Standard H
- Bioflow 8.0 and Jumbo