Crimson Cavern Bestiary Guide with All Fisch Fish Locations and Tips

Hidden deep beneath Fisch’s shimmering waters, the Crimson Cavern holds rare species that challenge even experienced collectors. This guide breaks down where to find each creature, the best gear to bring, and how to complete your Bestiary without missing a single catch.

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Full List of Crimson Cavern Bestiary in Fisch

The Crimson Cavern bestiary in Fisch features nine distinct fish species, each tied to specific bait, weather, time, and season conditions. Common catches include Red Spotted Blenny with Worm bait on clear spring days, Sea Raven using Worm during winter rain, and Red Crabsquid on clear summer days with no bait required. Rare options consist of Viperfish via Minnow at night in winter rain, and Red Fangtooth with Flakes during autumn nights in rain; higher tiers cover Japanese Dragon Eel using Squid in foggy winter nights, Vampire Squid with Truffle Worm under foggy autumn nights, Lithodes Megacantha via Weird Algae in foggy spring nights, and Colossal Ancient Dragon requiring Shark Head during clear spring or summer hunt events.

To complete the Crimson Cavern bestiary in Fisch, you must catch 9 unique fish. But before you start fishing, you must unlock the Crimson Cavern in Fisch. To do so, start by finding Keystones in Fisch. Once done, you can go to the Mysterious Crack and unlock Luminescent Cavern, cross the Mysterious River, and catch the Colossal Blue Dragon. Then submit it to the Crismon Guard NPC.

These fish range from common to exotic, and each requires specific weather, season, time, and bait conditions. The bestiary includes legendary, mythical, and secret fish, each with its own progress tracker.

Luckily, there are no secret fishes, but you must catch both exotics to 100% this bestiary. There are two exotics, and one is rare to get, as it only appears randomly in the Crimson Cavern. That said, here’s the complete list for the Fisch Crimson Cavern bestiary to guide you:

Fish	Rarity	Bait	Weather	Time	Season
Red Spotted Blenny	Common	Worm	Clear	Day	Spring
Sea Raven	Uncommon	Worm	Rain	Day	Winter
Red Crabsquid	Uncommon	None	Clear	Day	Summer
Viperfish	Rare	Minnow	Rain	Night	Winter
Red Fangtooth	Rare	Flakes	Rain	Night	Autumn
Japanese Dragon Eel	Legendary	Squid	Foggy	Night	Winter
Vampire Squid	Mythical	Truffle Worm	Foggy	Night	Autumn
Lithodes Megacantha	Exotic	Weird Algae	Foggy	Night	Spring
Colossal Ancient Dragon	Exotic	Shark Head	Clear	None	Spring Summer

Best Tips and Tricks to Complete Crimson Cavern Bestiary in Fisch

Focus on luck-based targets first: equip gear and bait that maximize luck to improve exotic and mythical catches, then switch to resilience-enchanted setups for tougher entries.
Use the Ethereal Prism Rod with Night Shrimp or Weird Algae as bait for high-yield results, and apply Steady or Flashline enchants to counter negative progress.
Prioritize rare window timings (fog nights and hunt events) and have a rain route ready to compress catches of multiple rare fish into shorter spans.
Optimize your rod with Resilient and Quality enchants to handle high-resilience targets, and consider Mystical if you have Exalted Relics to boost progress and luck.
Always prepare a quick-access kit for the hunt events, including a Shark Head ready for specific high-difficulty targets, to maximize success during timed spawns.

Completing Fisch’s Crimson Cavern bestiary is not easy, despite being in a small fishing area. However, you can optimize the fishing gear and techniques, which significantly accelerates this process. This guide will help you select the most effective tools and methods for faster Fisch Crimson Cavern bestiary completion.

1. Best Rods for Crimson Cavern Bestiary

Some of the best rods for this bestiary will be the Challenger’s Rod and Tempest Rods due to their faster progress speed. If you need luck instead for the rare catches, rods like the No-Life Rod and Heaven’s Rod can be perfect for this bestiary since any bait works fine with them.

However, the rare fishes in the pool come with high-resilience debuffs. To tackle that, I suggest you go with the Poseidon Rod. If you want to make a lot more money from these limited-time fish, you can also use the Ethereal Prism Rod in the Crimson Cavern Bestiary in Fisch.

2. Best Baits for Crimson Cavern Bestiary

Luck matters the most when you are fishing in the Crimson Cavern. That is why we highly suggest following the table above for the best baits for each fish in this cavern area. In case you are running out of preferred baits, for a beginner, Seaweed is a good option. It increases your lure speed and resilience by a decent amount, enough for the lower-tier catches.

Also Read: How to Get Fang of the Eclipse Rod in Fisch

However, to maximize high-tier fish catching, Night Shrimp and Weird Algae are a must. These will increase your luck and improve the chance of finding Mythical or Exotic fish. If you are using a rod with 200 luck, go with the Coral bait instead for resilience. To confirm catching the Colossal Ancient Dragon, keep the Shark Head ready when the hunt event starts.

3. Use the Best Enchants for Crimson Cavern Bestiary

Fishing in the Crimson Cavern Bestiary can get tricky if you don’t have a good rod. In such a case, you can optimize your rod by using a good enchantment. Given that the fish come with higher resilience, Resilient and Quality are my preferred picks for new players. If you have Exalted Relics, you can try for the Mystical enchant, which also improves progress and luck.

As more than half of the fishes here come with a negative progress speed, you can get the Steady or Flashline enchant too. I suggest you go through our best Fisch enchants list and pick your favorite one to complete the Crimson Cavern bestiary in Fisch.

4. Best Rod, Bait, and Enchant Combo for Crimson Cavern Bestiary

The best all-around setup to complete the Crimson Cavern bestiary in Fisch is the Ethereal Prism Rod with Night Shrimp or Weird Algae as bait. Pair this with Flashline and Steady enchants to deal with the high-resilience debuffs that most cavern fish carry.

These choices make Mythical and Exotic catches far more consistent while keeping progress speed steady. If you’re aiming to farm profit alongside completing the bestiary, swap to the Luminescent Oath Rod with Night Shrimp bait once you have 200 luck for stronger returns.

Most of the cavern’s rarest fish spawn during nights in spring and autumn, which makes these the best conditions to focus on. To catch the Exotic Colossal Ancient Dragon specifically, you must keep using the Sundial Totem in Fisch until it spawns in the cavern. During that time, look for the dragon as it goes away after 15 minutes. You can only catch one of them during every spawn.

Sticking to this loadout during those windows will let you clear the majority of the bestiary without needing constant gear swaps. This combination of rod, bait, enchant, and timing gives you the most efficient path to finishing the Crimson Cavern log while also setting you up for good rewards.

Best baits and rods for each Crimson Cavern fish

For each Crimson Cavern fish, use its preferred bait plus a fast-progress or high-luck late-game rod; you can then swap to a universal “all-round” setup (Ethereal Prism + Night Shrimp/Weird Algae) once you mainly need rares and exotics.

Below is a condensed table from community/guide data with the best bait and recommended rod style for every Crimson Cavern fish. Exact rod names can vary (Challenger’s/Tempest for speed, No-Life/Heaven’s/Poseidon/Ethereal Prism for luck + resilience), but the type of rod and bait preference stays consistent.

Crimson Cavern fish, baits, and rods

Fish	Rarity	Best bait	Ideal rod type
Red Spotted Blenny	Common	Worm	Any mid-game rod; fast progress focus
Sea Raven	Uncommon	Worm	Fast-progress rod (Challenger/Tempest type)
Red Crabsquid	Uncommon	None (no bait)	Any; prioritize control for easier catches
Viperfish	Rare	Minnow	Progress-speed rod with some resilience
Red Fangtooth	Rare	Flakes	Progress + resilience (Poseidon-style)
Japanese Dragon Eel	Legendary	Squid	High-luck rod (No-Life/Heaven’s-style)
Vampire Squid	Mythical	Truffle Worm	High-luck rod with good resilience (Poseidon/Ethereal-style)
Lithodes Megacantha	Exotic	Weird Algae	High-luck rod with strong resilience (Ethereal Prism-type)
Colossal Ancient Dragon	Exotic	Shark Head	Highest-luck rod available; any bait works on rod, but use Shark Head to trigger catch during hunt

All-round setups to rotate

General filling (commons/rares): Challenger’s or Tempest-type rod + each fish’s preferred bait for quick progress.
High-tier focus (Mythical/Exotic): Ethereal Prism-type rod + Night Shrimp or Weird Algae with Flashline + Steady enchants to counter cavern resilience debuffs.
Profit + late bestiary: Once you have ~200+ luck, a high-luck “Oath/Heaven’s-style” rod with Night Shrimp (or Coral for more resilience) makes farming rare and exotic entries much more consistent.

Which Crimson Cavern fish are rare or exotic

In Crimson Cavern, the “rare or higher” fish are Viperfish and Red Fangtooth (rare), Japanese Dragon Eel (legendary), Vampire Squid (mythical), and Lithodes Megacantha plus Colossal Ancient Dragon (exotic).

Rare-tier fish

Viperfish – Classified as a rare fish in the Crimson Cavern bestiary.
Red Fangtooth – Also marked as rare, appearing in rainy autumn nights.

Above-rare (legendary & mythical)

Japanese Dragon Eel – Listed as a legendary Crimson Cavern fish.
Vampire Squid – Listed as a mythical-tier fish and significantly harder to hook than the rares.

Exotic fish

Lithodes Megacantha – Explicitly labeled as an exotic Crimson Cavern species, found on foggy spring nights.
Colossal Ancient Dragon – Another exotic, tied to special hunt conditions in Crimson Cavern and required to finish the bestiary.