My friend and I did a bit of a fish swap today. She gave me some of her endler guppies and I gave her some platies. 2 hours later one of the biggest female endlers has become dinner for a yoyo loach. Now she could have died from the stress of transporting and new surroundings, but is it possible that she was attacked? I asked because one of my baby platy has lost it's eye recently and is currently in a hospital tank.