Frogs, they LOVE frogs, mice are good eatin's for a bucketmouth too.
At his size id get some suckers, he could eat a dozen in 4-5 hours.
We feed ours daily. but I do know that they do not eat everyday in the wild, id feed him every 3-4 days when he gets bigger but get that future hawg on some suckers and medium roaches as soon as possible. roaches feed 2-3 roaches per feeding, the roach that survives wont for long.
Roaches are like this, every baitshop has em. They might not be as vibrant as this wild roach but bass dont care.
bait roaches are half to 1/3rd the size of that wild one.