That's a toughie, even for a ballpark. It is fairly well known that very few marine fish species are successfully bred in captivity, so probably better than 90% of fish are wild caught. Same goes for inverts, although coral fragging has gone a long way towards taking the pressure off the natural reefs. Anemones such as bubble tips split fairly frequently, so that's at least one other invert I know of that is fairly reliably reproduced in captive systems.
Last edited by mike31154; 09-02-2009 at 04:38 AM.
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