Fisch: Complete Second Sea Guide

Previous Fisch’s updates were all about adding new life to the world you already knew — whether it was new islands, fish species, rods, or even bestiaries. But the Second Sea update takes things up a notch by introducing an entirely new dimension. This new world runs alongside the original one but comes packed with its own set of resources, islands, and rewards.

That means you’ll be setting sail for brand-new islands, reeling in fish you’ve never seen before, and earning a new currency — since the old ones won’t carry over to this dimension. Your old rods will still work, though they’ll pack less punch here. Meanwhile, core mechanics like Angler Quests, Shipwrights, and Merchants stay the same. For those interested, this guide will show you all the new content added in the Fisch Second Sea update.

Fisch: Complete Mariana’s Veil Guide

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How To Complete The Second Sea Update In Fisch

Here’s how you can finish the whole Second Sea update:

The Cthulu Boss Fight

First things first, you’ll need to head over to Terrapin Island and take down the Cthulu Boss to unlock the Second Sea in Fisch. Remember, this boss only shows up if your level is 200 or higher, so make sure to level up before making the trip. Once you meet the requirement, talk to the Sea Traveler on Terrapin Island, then meet Silas near the giant gate, and he’ll let you step into the fight. After defeating Cthulu, his chamber will open and drop you straight into the Second Sea. Once unlocked, you can also use the Sea Traveler for easy teleportation anytime.

Eight New Bestiaries

how to complete the waveborne bestiary in fisch

The Second Sea brings seven stunning islands spread across the Open Ocean — pretty much the same layout as the First Sea’s waters. On top of that, there are eight bestiaries to complete here, and finishing each one rewards you with 2,000 EXP and 2,000 Embercoins (Second Sea currency). Here’s a quick look at all the bestiaries and how many fish you’ll need to catch for each.

All Second Sea Locations	No. of Fish	Bestiary Fish	Secret Fish
Waveborne	13	Drift Claw Gale Snapper Sprayfin Foamrunner Depth Lurker Ripple Spine Surge Pike Abyss Dart Tide Fang Breaker Gust Tail Wave Piercer Vortex Ray	Storm Skipper
Isle of New Beginnings	9	Reefdart Tidallow Crestscale Horizon Tetra Driftfin Lantern Snapper Abyss Flicker Tartaruga Whisper Eel	Phantom Koi
Lushgrove	12	Bogscale Murkdrifter Canopy Tetra Vinefish Fogstripe Hollow Snapper Temple Perch Relic Dart Glade Lurker Echo Koi Jungle Phantom Idolfish	Primordial Levi
Emberreach	25	Pyre Fang Lava Bream Glowfin Skipper Moltenstripe Firecrest Ashscale Minnow Magma Pike Smogfish Searfin Sulfur Snapper Hellmaw Eel Smolderfang Sunflare Tetra Basalt Pike Inferno Chaser Volcanic Prowler Emberwing Blazebelly Furnace Leaper Cragscale Cinder Dart Scorchray Brimstone Angler Tropicspike Obsidian Koi	Molten Ripple
Azure Lagoon	11	Murkfin Brackscale Lagoon Dart Swampjaw Glimmer Guppy Reed Striker Algae Lurker Azure Prowler Phantom Brine Bloomtail Depth Drifter	Verdant Mirage
The Cursed Shores	12	Blisterfish Gloombiter Rotjaw Murkslither Tumor Pike Split Eye Snapper Hollowfin Crawling Angler Screaming Fluke Veinspawn Chasm Leech Dreaming Aberration	Abyssborn Monstrosity
Pine Shoals	8	Watching Glowfin Drifting Gildfin Blue Foamtail Redwood Duskray Oak Stripetail Pine Zephyrfish Parktail Spinesnapper Sunray Sunscale	Thornfish
Open Ocean	20	Rock Gunnel Pupfish Snakehead Telescopefish Hogchoker Warty Angler Lumpclinger Four Eyes Fish Black Swallower Boarfish Snipefish Knifefish Fangtooth Velvet Belly Lanternshark Pelican Eel Sea Leviathan Tripod Fish Sarcastic Fringehead Bigfin Squid X-ray Tetra	Psychedelic Frogfish Dogefin Toilet Fish

Latest Fishing Rods

Next up, you’ll find eight new fishing rods in the Fisch’s Second Sea. Each rod comes with its own set of stats, including Lure Speed, Luck, Resilience, Control, and Strength — making it easier to reel in area-exclusive fish. Here’s a breakdown of each one:

Second Sea Rods	Cost
Wildflower Rod	7,000 Embercoins
Firefly Rod	9,500 Embercoins
Frog Rod	12,000 Embercoins
Free Spirit Rod	200,000 Embercoins
Verdant Shear Rod	40,000 Embercoins
Blazebringer Rod	70,000 Embercoins
Azure Of Lagoon	100,000 Embercoins
Great Dreamer Rod	500,000 Embercoins