Sombat Posted April 14, 2021 Share Posted April 14, 2021 I recently purchased a Fluval Flex 9 gallon for my betta. It came with Bio media and carbon. I was watching a video from KGTropicals on his review of the Fluval Flex. He mentioned that because he has a planted aquarium he will not be using the carbon filter. I too have a planted tank so I wanted to verify if the carbon filter should be removed. Link to comment Share on other sites More sharing options...
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