corner spaces sharp angles in the interior space this is an important structural feature of the present invention which helps live bait to be able to avoid bunching up at a corner and to keep swimming which helps to keep the bait fresh longer it is this feature that defines the substantially circular and oval shape of the bait keeper in use the present dynamic flow live bait keeper is placed in the water where a person such as a fisherman intends to use it the bait keeper is buoyant and floats in the water once the bait holder is placed in the water it will fill with water to its neutral buoyancy level live bait is placed into the interior space of the keeper body through the hatch door and the hatch door closed similarly bait may be removed from the bait holder as desired by the user one end of a tether line is attached to the tether attachment of the keeper body the other end of the line is attached to the fisherman his herself to a fishing boat or water craft or to something stationary in the water the force of the wind or current in the water or the motion the bait keeper over the water takes the bait keeper to the end of the tether line selection of an appropriate composition and length of tether line is readily accomplishable by a fisherman of ordinary skill in the art once.