Stardew Valley Fishing Guide: How To Fish, Use Bait, ... which has a slot for bait. The Fiberglass Rod costs 1,800G and is unavailable until you reach Fishing Level 2, ...

The SquidFest happens on Winter 12 and 13 every year in the game. The goal is to catch as many squid as possible. Since it is the Winter season, it is fairly easy to catch squid.