I couldn't believe they had domestic loaches either and I questioned if they came from his fish farm in florida , they did not. I of course mentioned hormones would have be part of it, and this was confirmed. So good news for the wild caught populations. I think I may have to get another tank and set up the domestic loaches to find out for myself. The came up to the front of the tanks in swarms looking for their next meal, and were active and appeared really healthy and not shy at all.