Haha everyone has had a problem with it so far, I need an easier solution or some better hints. The most direct route is to buy either the Squanto or Bacchus mods from Beck's Tech (then either harvest or gift items until you get a fish). The easiest way is to research the Campfire at Etta's lab, cook some fruits or veggies that you've grown, and then donate them to the Potluck on Tuesdays and Thursdays. The backup method is to repair the Food Stall below Pete's house, and Ryan will sell a fish food item on Fridays.