Zeigler brother's.
I have been buying this for a decade, lately five 44 lb bags every 2 months.
http://www.zeiglerfeed.com/finfish/freshwater/silver/
Beware that experts, for whom I have utmost respect, like
RD.
wouldn't feed this to their fish even if it were free.
To me, it's been a compromise. I'm always searching for something better but less expensive than NLS and Hickari.
BTW, for every 100 lbs of the Ziegler pellets I feed a few pounds of NLS and Hickari too. But that's all I can afford at the moment. 50% of my fish's diet is baitfish which I catch myself in the ocean. So that's kind of free, except my time, effort, and casting nets.