For many players, fishing is the most difficult skill to master in Stardew Valley, and completing the Fish Tank Bundle will require learning the ropes. With 1.6 introducing new details and tricks for every aspect of the game, farmers everywhere are starting up new saves and working on bringing the Community Center back to its former glory. To complete the Community Center, you will have to collect the bounty of the valley using every skill they have.

https://screenrant.com/stardew-valley-fish-tank-bundles-year-one-completion/