LFS claimed wild caught fishes are better

[mrhasan]

Well reefers from Calgary must know about Gold's aquarium since they always carry the best deals in down in both livestock and equipment. The other day I was asking the owner which fishes are captive bred, he said that he stopped keeping captive bred since wild ones are more resistant to diseases and are much more colorful. He even gave the technical reasoning for claiming that wild ones are more resistant to diseases because the captive bred are all coming from (more or less) a single generation and hence they are more pron to diseases (its like keeping on taking the same medication over and over again and that person' generation will slowly develop resistant to the medicine and thus the medicine will not work and hence the disease can take over).

I got really confused because I thought captive bred are more resistant to "aquarium" diseases. His logic seems reasonable to me too.

What do you people think?