| 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. The Juwel Blue Filter Sponge is suitable for the internal filters Compact, Compact H and Comapct Super, the sponge is available in rough and fine. |
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Juwel Blue Filter Sponge for Compact