TL;DR
- The Anti-Debuff Altar removes the -50% penalty from Sea 1 rods when fishing in Sea 2 waters
- Located at Cursed Shores Island (X=-216, Y=86, Z=1917) with distinctive Cthulhu landmark
- Requires Sea Leviathan, Moon Idol Sea 2, and Cursed Thread for activation
- Follow precise navigation path past Brother Gleem and Brother Murk NPCs
- Proper preparation saves significant time and fishing efficiency
Fisch has introduced a revolutionary feature that transforms your fishing experience across different sea levels. The Anti-Debuff Altar represents a significant quality-of-life improvement that allows veteran players to continue using their trusted Sea 1 equipment without performance penalties. This system effectively eliminates the previous -50% efficiency reduction that made Sea 1 rods nearly useless in Sea 2 fishing grounds.
To activate this powerful feature, you’ll need to gather three essential components: the Sea Leviathan, Moon Idol Sea 2, and the Cursed Thread. Each item serves a specific purpose in the ritual, with the Sea Leviathan providing the raw power, Moon Idol Sea 2 aligning the celestial energies, and Cursed Thread binding the enchantment to your equipment.
Strategic advantage: Restoring your Sea 1 rods means you can leverage their unique properties and upgrade investments while fishing in Sea 2’s richer waters. This eliminates the need to completely rebuild your fishing arsenal from scratch when progressing to new sea territories.
The Anti-Debuff Altar is situated at the Cursed Shores Island within Sea 2 of the Fisch universe. This location features a distinctive Cthulhu-inspired monument that rises dramatically from the island’s foundation, serving as an unmistakable visual marker for navigation.

Navigation protocol begins from your initial spawn location. If you appear first at Waveborne island, execute a southwest trajectory to reach the target island using these precise coordinates: X= -216, Y= 86, Z=1917. These coordinates position you perfectly for the subsequent landmark-based navigation phase.

Upon arrival, identify Brother Gleem NPC distinguished by his colorful clown wig. Proceed beyond this character to discover the Angler’s Hut positioned slightly ahead. This structure serves as your primary orientation point for the final approach sequence.

Preparation efficiency: Before embarking on this journey, ensure you have all three required items readily available in your inventory. The ritual activation process consumes these components, so attempting the process without proper preparation will result in wasted travel time. Advanced players recommend completing this process immediately upon reaching Sea 2 to maximize your fishing efficiency throughout the progression phase.

Common navigation error: Many players mistakenly head directly toward the Cthulhu figure rather than following the prescribed path through the NPC landmarks. This often leads to inaccessible terrain or unnecessary environmental hazards. The correct approach utilizes the established pathfinding markers for optimal safety and efficiency.

Rod performance optimization: Once the debuff removal is complete, your Sea 1 rods will perform at their full statistical capacity in Sea 2 waters. However, this doesn’t make them superior to dedicated Sea 2 rods—it simply removes the artificial penalty. For maximum fishing performance, consider consulting our Weapons Unlock guide for complementary equipment enhancements.

The complete process from initial spawn to altar activation typically requires 5-7 minutes for experienced players, while newcomers should allocate 10-15 minutes accounting for navigation learning curves.


Action Checklist
- Gather Sea Leviathan, Moon Idol Sea 2, and Cursed Thread
- Navigate to Waveborne island spawn point and set southwest course
- Travel to coordinates X=-216, Y=86, Z=1917
- Locate Brother Gleem NPC and proceed to Angler’s Hut
- Follow path behind hut, cross bridge, pass stairs and Brother Murk NPC
- Enter left-side tunnel and descend straight to altar chamber
No reproduction without permission:Tsp Game Club » How to Rebuff Sea 1 Rods in Fisch Sea 2 (Anti-Debuff Altar Guide) Complete guide to finding the Anti-Debuff Altar and restoring your Sea 1 fishing rods in Fisch
