so I have the drilled pvc pipe that runs lengthwise across the top of my out of the water livewell that sprays on the top of the water from my 500gph pump when I fill - does that meet the aeration requirements or should I add a D-cell powered bubbler too? so confused...

edit: reread mitch's post

>for the pump to add/refresh water in the livwell the rule says 350GPH minimum. I use a 500 GPH with a
>spray head that helps aerate when I refresh the water(2 or three times an hour).
> The aerator I use is this one.

so you're using a similar spray head setup to what I'm using, so I think my answer is that I need to get a bubbler in addition to the current spray head.