when we get shipped them up to sell at jansens they come with info sheets from the people down south that are breeding them for human consuption. on the sheet it talks about not adding chlorine remover as it can basically paralize them. they stay alive but cant move and eventualy die after a couple of days. Also temp is another major part in it all that hate warmth we had a few die an the temp was 19-20 degrees the fish room was getting to warm and we couldnt cool it apart from turning air conditioning on. And from what I know talking to the people we get them of most chemicals can kill them eg algae fix amonia, remover ph up down ect.....someone correct me if im wrong.
cheers