Run filter sock 24/7?

In the past I had been pretty anal about not having some type of mechanical filtration. I generally ran sock/sock type filtration/a home brewed floss type filter at different points in time. It was truly amazing what would gather on it. Lately however (after much reading) I have landed myself on the other side of the street with a more natural approach and don't use it at all. When I did run them it was 24/7 until it needed cleaning.
 
You don't need it, but if you prefer a cleaner water column it will help.

As was already said, just make sure you wash and change it regularly so it doesn't become a nitrate trap.
 
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