I don't believe that they are all wild caught. I believe that there are some farms using hormone injections. I just don't see it as being cost effective. I have no evidence supporting the fact that there are fish farms in Asia breeding them whatsoever. At this point I believe that it is happening, I just don't know the scale of the operation. The type of hormones that one would need to breed loaches is very expensive.Miles;2228645; said:mmm.. they all wild caught.