The Open Ocean is similar to the Ocean in First Sea—it’s a vast area where you can catch 23 fish based on the right weather, time, season, and bait you’re using. Knowing how to catch them is required to complete the Open Ocean bestiary in Fisch and to collect as many rare fish as possible to farm money. Here’s everything you need to know.
How to Complete the Open Ocean Bestiary in Fisch
This list features the preferred conditions of all the fish, including Exotics (X-ray Tetra, Sea Leviathan) and the rare Secret fish (Dogefin, Toilet Fish and Psychedlic Frogfish):
| Fish | Time | Weather | Season | Bait |
| Rock Gunnel | Night | Rain | Spring | Shrimp |
| Hogchoker | Day | Clear | Summer | Sapphire Krill |
| Pupfish | Day | Windy | Summer | Mist Worms |
| Black Swallower | Night | Rain | Winter | Minnow |
| Warty Angler | Night | Foggy | Autumn | Crystal Bananas |
| Four Eyes Fish | None | Windy | Spring | Lagoon Leech |
| Boarfish | Night | Rain | Winter | Ember Berries |
| Snipefish | Day | Foggy | Autumn | Flakes |
| Lumpclinger | Day | Windy | Summer | Gale Grub |
| Fangtooth | Night | Rain | Spring | Lushrooms |
| Telescopefish | Night | Clear | Winter | Squid |
| Sarcastic Fringehead | Day | Rain | Autumn | Gale Grub |
| Snakehead | Night | Windy | Summer | Minnow |
| Knifefish | Night | Foggy | Spring | Lagoon Leech |
| Velvet Belly Lanternshark | Night | Foggy | Winter | Crystal Bananas |
| Bigfin Squid | Night | Foggy | Autumn | Crystal Bananas |
| Pelican Eel | Day | Rain | Spring | Mist Worms |
| Tripod Fish | Day | Clear | Winter | Sapphire Krill |
| X-ray Tetra | Day | Windy | Summer | Sapphire Krill |
| Sea Leviathan | None | Foggy | Spring | Luminous Larva |
| Psychedelic Frogfish | Day | Foggy | Autumn | Luminous Larva |
| Toilet Fish | Day | Clear | Summer | Mist Worms |
| Dogefin | Night | Clear | Winter | Mist Worms |
The unique baits that you’re seeing in this list are obtainable from the Tropical Bait crates, which can be fished from anywhere in the Second Sea. Since they are low in rarity, you shouldn’t have any issues collecting a lot of them.
You obtain 2000E$ and XP for completing the Open Ocean bestiary in Fisch. If you’d also like to complete the bestiary of Isle of New Beginnings, here are all the details you need to know.