An apparatus and system is disclosed for facilitating an angler in placing fish into a weigh-in bag from a boat's live well. The apparatus includes a post for inserting into a seat post receiver of a boat, and has a hook on its top for receiving handles of a weigh-in bag. The apparatus also preferably includes a fill tube connected to the pumping system of a boat's live well plumbing system. The apparatus holds and fills the bag in a position and location convenient to allow an angler to use both hands to retrieve a fish from a live well and then insert the fish into the bag.
