Rotbloom is an exotic catch in Fisch that only becomes available in Toxic Grove during an active Rotbloom event. Reaching the spot is only part of the process. The event has to be live, and the local trigger has to be activated before the fish can be pulled from the water.
Quick answer: Wait for the Rotbloom event in Toxic Grove, go to the Rotbloom pool at -2538, -271, -2414, interact with the nearby Toxic Shrooms, then fish the spawned spot using water-safe gear.
Rotbloom trigger in Fisch
Rotbloom does not sit in Toxic Grove all the time. It is tied to a Rotbloom event that appears at intervals, and the catch only becomes available while that event is active. When the event appears, a notification shows on screen, and the Rotbloom area becomes relevant.
There is one extra trigger that matters. You cannot immediately fish up Rotbloom the moment the event appears. You need to move to the nearby mushrooms and interact with the Toxic Shrooms first. After that interaction, the Rotbloom spawn becomes catchable.
You know it worked when the Rotbloom spawn is active at the event pool after the shroom interaction. If you arrive early or skip the mushroom trigger, fishing the pool will not complete the catch.
Rotbloom location in Toxic Grove
Rotbloom appears in Toxic Grove inside the Lost Jungle. The event pool sits near -2538, -271, -2414, on top of a cliff beside a small body of water.
Before entering the toxic area, you need the Gas Mask. Toxic Grove access also requires 50 percent Lost Jungle bestiary completion, and the Gas Mask costs 75,000 cash at the Toxic Cave entrance.
| Requirement | What you need |
|---|---|
| Area | Toxic Grove in Lost Jungle |
| Access gate | 50% Lost Jungle bestiary completion |
| Safety item | Gas Mask |
| Gas Mask cost | 75,000 cash |
| Rotbloom pool | -2538, -271, -2414 |
How to trigger Rotbloom
Step 1: Enter Toxic Grove with the Gas Mask equipped and move to the Rotbloom pool coordinates. If the Rotbloom event is not active, the catch cannot trigger there.
Step 2: Wait for the on-screen event notice that signals the Rotbloom spawn. Once that appears, stay near the pool and look for the nearby Toxic Shrooms.
Step 3: Interact with the Toxic Shrooms. This is the key local trigger that enables the Rotbloom catch rather than leaving it as a dormant event location.
Step 4: Fish the active Rotbloom pool. Use a rod that can handle the toxic water condition, or use a stronger rod with Invincible if available.
How to know you are using the right setup
Rotbloom favors Autumn and responds to Luminous Larvae or Thorn Cluster bait. Time and weather are not restricted for this catch, so the event trigger matters more than trying to force a specific hour or weather state.
| Rotbloom condition | Setting |
|---|---|
| Rarity | Exotic |
| Location | Toxic Grove |
| Spawn state | Active Rotbloom event |
| Local trigger | Toxic Shrooms interaction |
| Preferred bait | Luminous Larvae, Thorn Cluster |
| Season | Autumn |
| Time | Any |
| Weather | Any |
For rods, the important part is being able to fish safely in Toxic Grove water. Volcanic Rod and Magma Rod fit that requirement directly. Higher-end rods also work well if they are enchanted with Invincible, since that removes the water restriction and lets you focus on landing the fish.
What usually stops the Rotbloom catch
The main failure point is simple. The event is active, but the Toxic Shrooms have not been triggered yet. In that state, the spawn area is present, but the Rotbloom itself is not ready to be caught.
The second common issue is the environment. Toxic water rises at intervals in the area, and direct contact can kill you quickly. If you die during the event window or while moving to the mushrooms, you lose time and may miss the active catch state.
Rotbloom and Witherbloom are not the same catch
Rotbloom is the exotic version tied to the Rotbloom event. Witherbloom is the secret variant and needs a different trigger after Rotbloom appears. To bring out Witherbloom, the Blighted Idol must be activated once the Rotbloom spawn is already up.
If your only goal is Rotbloom, you do not need to complete the Witherbloom trigger. The decisive requirement is still the same: an active Rotbloom event, Toxic Shrooms interaction, and then fishing the event pool.
If the event is live and the Toxic Shrooms have been activated, you are in the correct state. From there, the catch is a straightforward Rotbloom attempt at the Toxic Grove pool rather than a hidden puzzle or a general-area random roll.