. Plug the holes in the wells. Purchase 2 inboard engine water intakes (one for each box). They are egg shaped pucks made from brass with milled slots on the front of the dome and are mounted through the hull to help force feed water up through the sea strainers and into the engines. Mount these on the bottom of the box and through to the inside. Inside the box, have a PVC gate valve that you can open or close the flow generated by the forward motion of the boat. Now make a riser to the desired height and mount some kind of starburst diffuser for the water to spray through and fill and aerate. Provide a discharge outet 2X the intake diameter and fabricate a screen inside the discharge outlet to keep the bait in the box. One more item. On the lower corner of each box install a ball scupper that will let the water out when the gate valve is closed and not let the water in when not in use. I think this will work and the amount of water that will come through that intake and up the riser will be amazing! Plus you can regulate it with the gate valve. What do you think about that!!