| System philosophy
Lee: This is the neverending discussion. I have not reached a conclusion on the British-style circulation vs the Japanese "endless" systems. I have concluded that the British-originated systems centered on the permanent revolution around bottom drains are derived from what is best for filtration as the start point. On the other hand, the Japanese systems begin with what was seen as best for the koi [1970s pseudo-naturalist perspective, I think?] as a start point. Then each moves toward the other. I think the British system is far more efficient in both waste removal and water consumption, but I like the Japanese avoidance of the whirlpool effect and not having diffuser drains churning the water so that nothing is visible without flipping off the air pumps. Have not figured out how to get the best of each. Perhaps not possible.
I'll post later some thoughts about sizes.
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