By Jay / / Games

The Jungle Expansion introduced several hidden mechanics that many players are still discovering. One of the most important items tied to these secrets is the Blight Idol, a rare item used to transform specific fish and unlock one of the newest hidden catches in the game. Also check out our Fisch Codes for more rewards!

If you are trying to obtain the Withered Bloom, which is considered a new secret fish in the update, understanding how the Blight Idol works is essential. This guide explains where to get the Blight Idol, how the transformation mechanic works, and the correct way to turn a Rotbloom fish into a Withered Bloom.

What is the Blight Idol in Fisch?

The Blight Idol is a special item introduced with the Jungle Expansion update. It is mainly connected to the Toxic Grove progression and several questlines found in the area.

While the item itself can appear as a collectible reward, its most important function is activating a special transformation mechanic. When used correctly, the Blight Idol allows players to convert a Rotbloom fish into a Withered Bloom, one of the newest secret fish added in the update.

Because of this mechanic, many players consider the Blight Idol a key item for completing certain quests and unlocking late-game content.

How to Get the Blight Idol

There are a few ways players can obtain a Blight Idol in the Jungle Expansion.

1. Complete Joseph’s Quest

One of the easiest methods is completing a quest given by Joseph, an NPC located in the Toxic Grove region. To finish the quest, players must deliver a Rotted Seed. Once the requirement is completed, Joseph rewards the player with a Blight Idol. This method guarantees the item, making it the most reliable way to obtain your first idol.

2. Fishing in Toxic Grove

The Blight Idol can also appear while fishing in the Toxic Grove area. However, this method relies on luck and may take longer compared to completing the NPC quest. Using rods with higher luck stats can slightly increase your chances of obtaining rare catches in the area.

3. Participate in Toxic Events

Special environmental events such as Toxic Boils sometimes increase the chance of rare items appearing while fishing. Players who actively watch for these events may obtain additional Blight Idols faster.

How to Turn Rotbloom Into Withered Bloom

The Blight Idol becomes most useful when combined with the Rotbloom fish, which appears during specific hunt events in Toxic Grove.

Follow these steps to create the Withered Bloom:

  1. Obtain a Rotbloom fish during a Rot Bloom hunt event.
  2. Make sure you have a Blight Idol in your inventory.
  3. During the active Rot Bloom state, interact with the transformation mechanic using the idol.
  4. The Rotbloom fish will convert into a Withered Bloom.

The Withered Bloom is considered a secret catch and is required for certain quest progressions and rod unlock paths. Timing is important because the Rot Bloom event does not stay active for long.


The Blight Idol is one of the most important hidden items introduced in the Jungle Expansion of Fisch. While it may seem like a simple collectible at first, it actually unlocks a secret mechanic that allows players to transform Rotbloom fish into the rare Withered Bloom.

By completing Joseph’s quest, participating in Toxic Grove events, and preparing for Rot Bloom hunts, players can reliably obtain both the Blight Idol and the Withered Bloom. Mastering this process will make it much easier to progress through the newest content and uncover the deeper secrets hidden inside the Jungle Expansion update.

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About Jay
A Content writer for Roonby.com Contact me on [email protected], we can't reply to gmail for some reason.