Saw this at RF:
http://seattlepi.nwsource.com/national/apscience_story.asp?category=1501&slug=Tropical Fish
Jeri Fox is raising a pair of foxface rabbitfish in a tank in a basement lab at the university. The fish are distinctive with bright yellow fins, bulging eyes and puckered lips.
"The aquarium trade will continue. It's not going to stop," Fox said. "So we want to supply it with fish that are raised, not destructively removed from the wild......But only a small percentage of the roughly 1,500 tropical fish species traded worldwide have been bred successfully in captivity, and the foxface rabbitfish is not among them....
A key reason is the fish's small size, only about two millimeters at spawning. The fish's mouth is no more than half a millimeter wide, making it difficult to provide appropriate food.
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http://seattlepi.nwsource.com/national/apscience_story.asp?category=1501&slug=Tropical Fish