Actually, I don't need sushi to live. It's just as much a luxury as the reef tank.
Mankind has domesticated plants and animals for eons. For various purposes and for better or for worse. Well, for both actually. Personally, I am under no delusion that I am helping the reefs in any way. What I do know that I am doing is my best to provide a long and healthy life for the creatures that are under my care. This includes the tank as well as my gerbils and all my house plants.
I'm no specialist by any stretch of the imagination, but I would like to think that the creatures that are captured for the trade have nearly an equal chance against any other natural predator. Yes, I know humans have an unfair advantage (tools, chemical, etc), but fundamentally we are just another predator. So yes, by extension I am a predator to these fish. However, I am probably the nicest predator they will ever encounter in their lifetime. If you gave them a choice between me and my 150g tank versus a barracuda, I wonder which they would choose.
Sorry, what was the question again?
