wow...i bought a baby sucker?

[Aznavalanche]

so yesterday i go like i usually do to pick up some live shiners. As my parents were driving me back to the river, i looked in the bucket and saw a "shiner" that looked deformed. So i kept staring at it trying to see what it was. Then i picked it up and was amazed! it was a sucker! So am I allowed to keep? or do i have to let it back in a river or lake since it's below minimum length
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