Thanks dc. If it did, I really didn't feel it. No reactions. The lights are on and it looks OK. I was concerned about the negative effects from the stress. Then I thought, in the wild, it they catch a fish , there are some violent movements caused by the fish trying to escape and this really doesnt harm the nem. If it did they would not have evolved the way they did. They seem to be resiliant animals when housed in an appropriate setting. Its open, mouth is tight and no regurgitation. It actually has more room to grow where it settled.