Did you happen to place the fish in a container or something to equalize the tempature of both the tank and them, or did you just place them straight into the tank? Doing so would internally damage them and can kill them if they are not strong enough, you have already lost 2, i hope the others are doing fine, bass are strong fish but shock will kill them, try not to move them around to much, let them settle down for now just keep up the water changes.