Great video, Tbar!
Your LMB and large BG must be absolutely stuffed. The tadpoles appear to be very easy prey at this stage since the fish get to observe them sitting on the bottom, rising to the surface for a breath, and then drifting back down to the bottom.
Do bullfrog tadpoles have any defense mechanisms? (Bad taste, mild toxins, etc.?)
When I see tadpoles, they frequently seem to be in mass swarms with all of the individuals at approximately the same stage of development. Is their reproductive strategy to all hatch at the same time and then the predators can't eat ALL of them?
