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"Healthy" water in an aquarium is the basic requirement for the demanding keeping of fish. Why do we say "healthy" water? The water in an aquarium is the same medium for fish and aquatic creatures as air is for humans. Only through perfect water quality can we obtain a "healthy" medium. We can achieve this with selected products from KOIPON. On the photo you can see our owner André Ahrens (the shadow man in the middle) on his research trip in Japan in front of the world's largest aquarium in Okinawa.

Water care

"Healthy" water in an aquarium is the basic requirement for the demanding keeping of fish. Why do we say "healthy" water? The water in an aquarium is the same medium for fish and aquatic creatures as air is for humans. Only through perfect water quality can we obtain a "healthy" medium. We can achieve this with selected products from KOIPON. On the photo you can see our owner André Ahrens (the shadow man in the middle) on his research trip in Japan in front of the world's largest aquarium in Okinawa.