for filtration? I was looking at the waterfall filtration setup, and am curious about this hypothetical setup. Two pond filters draw water up into the waterfall setup above, which comes back into the tank. Not complicated at all.
Then, for quick water changes, two drains on the bottom, with a turn valve to start water flow out a hose.
That is it. What are the flaws with the idea? It seems too simple to be good for a large, multi hundred, maybe 1000 gallon setup.

Then, for quick water changes, two drains on the bottom, with a turn valve to start water flow out a hose.
That is it. What are the flaws with the idea? It seems too simple to be good for a large, multi hundred, maybe 1000 gallon setup.
