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Re: Re: Large tank construction

If I understand the workings of a natural set up and if you intend to very
heavilly plant this large tank then filtration may not be nescessary beyond
the natural workings of the plants.Perhaps your main concern then would be
water movement through the water column and substrate. Maybe a hole in the
bottom of the tank with a valve to perge for water changes, drawing water
through the subsrtate. I think the larger the set up the easier it is to
maintain a natural working mini-ecosystem. Or simply UG with powerheads. Just
a thought.