FH were transported in bags filled with oxygen. Time to transport was 1.5 hours. When I got to the pond I put the bags in the pond for 15 minutes before I set them free. I have no idea what the temps were. All of the dead fish from last week have been removed. When FH were released most of them swam away, while some just set in the grass. Within 30 minutes they were swimming along the edges of the pond all the way around. At that time I thought everything was OK, so I left and came back five hours later and they were all dead around the whole pond.