When drastic increases in food costs spurred by the COVID-19 pandemic left Andrew Caplinger struggling to find fresh catfish for his restaurants, he decided to try “an experimental” solution — growing his own. In the coming months, the Indianapolis restaurant chain Caplinger’s Fresh Catch Seafood will begin sourcing its second most popular menu item from fish ponds at his 28-acre farm in southern Indiana. The goal is to produce up to half of the 800 to 1,000 pounds of catfish fillets served at the restaurants each week.