The Caustic Starwyrm isn’t your average catch-it lurks deep within the Brine Storm event, cloaked in toxic mists and rare spawn patterns that challenge even seasoned Fisch players. Here’s how to track, bait, and capture this elusive creature before it slips back into the abyss.
Fisch Caustic Starwyrm Location
The Caustic Starwyrm can be found in the Brine Storm event area, appearing deep within the swirling acid waters near the storm’s core. Players must enter during active storm conditions to spot its glowing outline beneath the surface. It favors darker zones, usually near bubbling vents or corrosive geysers, so keeping your sonar active helps track its movement accurately. Approach carefully, as its toxic field can damage your boat if you stay too close for too long.
The Caustic Starwyrm can be caught inside the Brine Pool of the Desolate Deep pocket area only during a Brine Storm event in Fisch. Use the Fisch GPS and go to these coordinates: X: -1720, Y: -175, Z: -3115, to find the Brine Pool in the Desolate Deep.
The Desolate Brine Pool is a hidden place in the Desolate Deep Pocket. To get there, find the red buoy (Point Nemo) near the Sunstone island on these coordinates: X: -791, Y: 142, Z: -3102. However, the secret fish will not be available right away.
Also Read: How to Catch the Mossjaw in Fisch
Brine Storm can only trigger during Rain in Fisch and has a 1 percent chance to activate every 30 seconds while rain is active. You can force it by using the Tempest Totem found in a hidden underwater cave near Terrapin Island at X: 36, Y: 135, Z: 1946 coordinates. When the event begins, a notification appears, and the Brine Pool water turns teal, while lure speed and resilience are reduced by half. The Brine Storm lasts for two minutes before the water returns to its normal green color.
Tips and Tricks to Get the Caustic Starwyrm in Fisch
Use high-tier bait like Corrosive Eels or Acidic Minnows to draw the Caustic Starwyrm faster, and focus your fishing near the green storm pools during Brine Storm hours for better chances. Equip gear that boosts corrosion resistance to last longer in toxic waters, and keep antidote potions ready since the wyrm’s aura increases toxin buildup quickly. Joining a party helps maintain stamina while fending off smaller mobs that spawn nearby, letting you stay focused on reeling in the rare catch without interruptions.
Now that you have all the information on where to find the Caustic Starwyrm, it is time to tell you some tricks to catch it easily. Firstly, you should focus on getting one of the best fishing rods in the game. See our Fisch rods tier list to choose the best among them. Consider going with the Seraphic Rod or Requiem Rod.
- Favorite Bait: Truffle Worm
- Time: Night
- No weather and season preferences
Along with good rods and preferences, you will need some solid enchantments on them to improve the lure speed and resilience. Remember, during the event, catching a fish gets harder with the negative buffs. Moreover, you will need the Invincible enchantment to fish in the Brine Pool if you are not using one that lets you fish there.
How to trigger Brine Storm event in Fisch
Brine Storm is a rare weather event that you can only trigger during Rain, using the Tempest Totem, and it has a small RNG chance to actually start once those conditions are met.
Basic conditions
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Brine Storm only happens in Rainy weather, and it only affects the Brine Pool area in the Desolate Deep.
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While it is raining, the game rolls a 1% chance every 30 seconds for Brine Storm to start, so you may need several minutes of rain before it appears.
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When Brine Storm activates, it lasts 2 minutes, and the Brine Pool water changes from green to teal/blue and a server-wide announcement appears in chat.
Getting and using Tempest Totem
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You need the Tempest Totem to reliably trigger Rain; without Rain, Brine Storm will never happen.
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The Tempest Totem is found in a hidden underwater cave off the side of Terrapin Island, around GPS coordinates X: 36, Y: 135, Z: 1946, so bring diving gear to reach it safely.
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Once you have it, use the Tempest Totem to start Rain, then wait in or near the Brine Pool while the game repeatedly rolls the 1% chance for Brine Storm during that rain.
How to “force” Brine Storm efficiently
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Loop the process: trigger Rain with Tempest Totem, stay at the Brine Pool during Rain, and watch for the water to turn teal and the chat announcement; if the event does not start before Rain ends, re-use the Totem and try again.
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You cannot make Brine Storm happen without Rain, and guides note that the 1% roll only happens while Rain plus the Tempest Totem are active, so normal Rain alone is effectively not enough.
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When Brine Storm finally activates, immediately start fishing in the Brine Pool, because you only have 2 minutes of boosted Brine-Storm spawns (and halved lure speed/resilience values) before it ends.
Where to buy Tempest Totem in Fisch
Tempest Totem in Fisch cannot be bought from a merchant or shop; it must be purchased directly from its fixed spawn location in a hidden underwater cave near Terrapin Island.
Location Details
The cave entrance is just left of Terrapin Island’s main docks, below a small cliff with two barrels-look for the underwater opening around coordinates X: 36, Y: 135, Z: 1946 (or nearby like X: 20, Y: 130, Z: 1860).
Dive in (diving gear recommended but not always required), swim through following any lit lamps or the path, and surface in the air pocket where the totem sits next to a skull or skeleton.
Purchase and Use
Interact with it to buy for 2,000 C$; it’s a one-time purchase per server but reusable while in your inventory to trigger Rain for Brine Storm events.
No trading or selling is possible once obtained.
