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 fish from the Crimson Cavern or get all of them. In this guide, learn how to complete the 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 BlennyCommon Worm Clear Day Spring
Sea RavenUncommon Worm Rain Day Winter
Red CrabsquidUncommon None Clear Day Summer
ViperfishRare Minnow Rain Night Winter
Red FangtoothRare Flakes Rain Night Autumn
Japanese Dragon EelLegendary Squid Foggy Night Winter
Vampire SquidMythical Truffle Worm Foggy Night Autumn
Lithodes MegacanthaExotic Weird Algae Foggy Night Spring
Colossal Ancient DragonExotic Shark Head Clear None Spring
Summer
Best Tips and Tricks to Complete Crimson Cavern Bestiary in Fisch
It is not easy to fully complete the Crimson Cavern bestiary in Fisch. But if you strategize and use the right gear, rods, and baits, you can easily catch every fish here. So, follow the tips below to complete the Crimson Cavern bestiary in the game.
Best Rods for Crimson Cavern Bestiary
Some of the best rods that you can use here are the No-Life Rod and Rod of the Depths due to their useful passive abilities. Now, if you feel like having more luck to improve the catches, consider using the Great Rod of Oscar or the Heaven’s Rod.
Apart from these, you can consider using Pinion’s Aria Rod if you’re looking for an easy way to complete the bestiary. Lastly, if you want to make the most cash out of this area, the best rod to use here is the Ethereal Prism Rod.
Best Baits for Crimson Cavern Bestiary
The table above showcases all the best baits that would easily draw them out. Consider using the respective baits for the Crimson Cavern Bestiary fishes to catch them. However, if you don’t have most or even any of the above, the go-to option is using Weird Algae. It increases your Universal Luck but reduces the Lure speed.
The best universal baits to use here are the Night Shrimps and Deep Coral. These can help improve the luck and resilience required to pull out the Mythicals and Exotics.
Use the Best Enchants for Crimson Cavern Bestiary
Fishing in the Crimson Cavern Bestiary can be difficult without a rod with proper stats. Here, a good enchantment can help you out. If the fishes are moving frantically while reeling, consider applying the Resilient and Quality enchants. But if you’re lucky enough to have Exalted Relics, do apply for the Mystical enchant, which can also boost the progress speed.
Since the fishes in this area will definitely apply a negative progress speed effect while reeling, applying the Steady, Flashline, or Piercing enchant can help a lot. While you feel these are good, do check our best Fisch enchants list to find other better options to fish in the Crimson Cavern bestiary.
Best Rod, Bait, and Enchant Combo for Crimson Cavern
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. Along with these, you can use the Piercing, Steady, or Mystical enchants to deal with the high-resilience debuffs that most cavern fish carry.
The above combination will help you get the rarer catches consistently without worrying about the reeling minigame. If you want to get a ton of cash alongside completing the bestiary, consider using 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. To catch the Exotic Colossal Ancient Dragon, you must keep using the Sundial Totem in Fisch until it spawns in the cavern. Then, look for the dragon as it goes away after 15 minutes. You can only catch one of them during every spawn.
So that’s how you 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.