Emperor 400 question

  • We are currently upgrading MFK. thanks! -neo
you can put whatever you want in it. Filter floss works well.

I've got a penguin 200, and I don't use the biowheel. Its an idiotic design; the water flowing down into the tank is smooth and quiet without the wheel, but if I put it on it disrupts the flow and makes it really noisy, regardless of how high the tank is filled.
 
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