[QUOTE]I feel weird for saying this, but I agree with them... The saltwater hobby as a whole is detrimental to the marine environment. Not only does it damage populations of certain species, it also is very damaging to the ecosystem as a whole with the introduction of invasive organisms such as the lionfish in the Caribbean. Personally, I would be very hesitant about getting anything for a saltwater tank that was not possible to breed in a domestic environment.
The fresh water keepers are not free of guilt when it comes to invasive species:
Snake Heads, Blue Catfish, etc.
The saltwater hobby is by no means perfect, but private aquarium owners have done a great deal in advancing the husbandry of marine fish and corals. In fact they put many public aquariums to shame. There is a compromise position, by keeping tank raised fish and identifying those wild caught species that do well in captivity, banning the sale of those fish that clearly have low survival rates in captivity.
It is the frag. coral industry that has made new steps in restoring some depleted reefs. As with fresh water aquariums we all have to be responsible for our systems. (I do not have a SW tank.)