Filtration (2) - 21 October 2014

I have not actually developed a sudden fascination for this type of equipment but, as we neared the end of our visit to Ripley's Aquarium of Canada, Toronto, this struck me on two levels. First, one is suddenly reminded of the complexity of managing a large aquarium with multiple tanks and, second, these three images seemed strikingly primary and therefore pleasing in their own right - in a weird kind of way.

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