Freak'n Wrasse

[Funky_Fish14]

Originally Posted by christyf5

it can cause rigormortis and the fish eventually dies.

Christy, I think rigormortis happens after death

I agree with Christy, its quite likely there was a lactic acid buildup or a heart attack, fish can get stressed quite easily and are not used to racing around like mad in a box like that.. also, the tank water may not have been 100% when you were doing so? Lots of suspended particles may inhibit breathing.

Chris