Interesting conclusion. I'd like to know how you arrived at it.

Seems to me that fish, especially under stress, need special attention to
keep healthy. Chemicals that relax the fish, restore slime coats, reduce
infections are probably helpful. Keeping the temperature in the fish's
comfort range is, too. Why wouldn't a device the keeps the oxygen content at
optimum levels be helpful, too? Or are you implying that the device doesn't
really raise the dissolved oxygen levels?

Joe
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"Dan" wrote in message
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Complete waste of money.