Hey guys I have a brand new Nitro z-9 boat and I have been having touble with my livewells I think. When I go out I fill them with clean water from my first fishing spot with the areation on high. I also put my recirulating pump on high as well. After I put the first fish in there, I turn on the oxygenators, which are running with the areation and recirculator as well.The fish seem to act fine for an hour, but after a while I notice they are putting their mouths toward the top of the livewell, as if gasping for air near the surface. After a few hours I will drain part of the live well and fill it back up again. After about three hours I have noticed the fish are starting to turn belly up. I have never had this problem before until now. The livewells seem to be performing just fine. I can't figure out the problem. I have always taken pride in proper fish handling, and I am just curious is there a small mistake I am making, or should I have my livewells checked out? Like I said it is a new boat so I am getting used to it still. What are you guys thoughts?