Alshain said:
But the fish in my aquarium are not "nature". If they were, then they wouldn't be in the aquarium. Maybe its just me but from what you have said of your philosophy, keeping an aquarium or any kind of pet for that matter would be against it. How is it natural to put a bunch of fish in a glass box?
You say "nature is theirs to alter" like we are trying to change what is out there now. Last I checked, nobody is releasing genetic hybrids into the wild with the intent to propogate the new species. Now, that said, I don't agree with "parrot fish type" hybrids where the result is a weak and ultimately miserable fish. However, interbreeding Xiphophorus is completely normal, and the fish are more than willing to do it, so what is the problem?
Animals in a zoo are not "nature", either. Does that mean we should dye the zebras pink, showcase ligers, breed a longhair strain of impala, see if we can breed giraffes with even longer necks? What exactly would that do for our understanding of these species, and our appreciation for them in nature? Imagine going on a safari and being bored by all the animals, bland compared to those "improved" ones you have seen in zoos all your life. The whole argument that it isn't natural to keep fish in a glass box, so it is paradoxical to object to man-made fish is pretty tired and pretty specious.
And of course, the usual fellow traveller of that argument is that it isn't natural to keep any kind of pet, I have seen that fallacious argument more than once on this site, so I would like to lay it to rest once and for all. It is not "unnatural" for humans to have pets as a matter of course. Dogs actually naturally domesticated themselves to humans in the late paleolithic, by opportunistically hanging around human garbage sites for scraps, and cats started domesticating themselves to humans once we had developed granaries, which concentrated rodents for them to eat, and both species evolved over time to be more behaviorally compatible with humans because it was naturally advantageous for them to do so. That is neither here nor there to our current discussion, though. Maybe it is the scientist in me, but I don't really see my fish as "pets". I don't name them. I see them more as specimens. A pet is something that comes when you call its name, that has genuine affection for you, that has coevolved with you to be a pet. I only keep cats and dogs as pets, I don't keep hamster or any other prey animals. And I don't ride horses, partly for that reason, partly because I broke my tailbone in college and it still hurts sometimes, and partly because I think they are spooky animals, and I don't trust them, don't want to end up like Christopher Reeve.
When you quote me saying "nature is theirs to alter", you are actually taking my words way, way out of context. When I was talking about people altering nature, I was talking about my job, remediating contaminated property that had been thoughtlessly or greedily damaged by people who had no concern for the environment. I just said that since I see that all day, when I get home, I like to spend my hobby time with fish that are natural-looking, not that look like they were man-made. It's like saying that a police officer spends all day dealing with the seamy side of life, so doesn't want to come home and watch Law and Order: SVU. That is no kind of condemnation of the cast and crew of Law and Order, or anyone who watches the show.
Fish selectively bred for exaggerated traits can and often do interbreed with wildtype fish, contaminating the gene pool of the wildtype. For some fishes, such as Lake Victoria cichlids, the captive populations are becoming the last hope for the survival of the species, and possibly repropagating in the wild, and I would hate to see a particular species weakened by a greater frequency of albino alleles.
But really, I think you are getting too defensive about this. It's a difference in philosophy, a difference in taste. I have already said I am not trying to stop the sale of fancy guppies, red wag swordtails, etc, so if you think there aren't enough naturally attractive fish in this world, then by all means, keep "improving" swordtails, what do you care what I think about it?