That silver dollar who looks like he's playing fetch is nibbling on the spinal cord of a silverside. Turns out these guys will strip a silverside down to the backbone, and fast. That took them under 10 minutes. I'm a bit tempted to put a frozen feeder mouse (maybe a pinky) in the tank and see what they do with it.
Figured out why this one is growing fastest out of the batch, too. He can somehow nibble back and forth along whatever he's got without ever letting go, like a really weird typewriter. The others bite food and try to hang onto it, but this guy grabs it and just flees the food thieves while he's eating.
