Only a couple of them look underweight from the difference in head and body size. Start looking at the forage base and have the water tested at TAMU. That's the bottom line.

Fish for bluegills and keep a log of ALL fish caught. Over time, the log will paint a good picture for you. I wouldn't rush to do anything until I knew more about the tank/pond/water hole.

I might cull, after you analyze things, everything 13 inches and under.

How big are the tanks and where are you in Texas(closest town)?

For non Texicans, a pond is called a tank or stock tank in Texas.

It's not about the fish. It's about the pond. Take care of the pond and the fish will be fine. PB subscriber since before it was in color.

Without a sense of urgency, Nothing ever gets done.

Boy, if I say "sic em", you'd better look for something to bite. Sam Shelley Rancher and Farmer Muleshoe Texas 1892-1985 RIP Grandpa