The Crimson Cavern area is one of the late-game areas in Fisch, and it contains some of the strongest rods in the game. However, to get a few of them, you must catch specific fishes from the Crimson Cavern or get all of them. In this guide, learn how to complete Crimson Cavern bestiary in Fisch, along with each fish’s preferred conditions, recommended baits, and tips to reel them in.
Full List of Crimson Cavern Bestiary in Fisch
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
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.
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.
So that’s how you can complete the Crimson Cavern bestiary in Fisch. Have you started catching them to unlock the Ruinous Oath rod? Let us know in the comments below.
