What to know

  • The Bloop Whistle is a tool that summons a Bloop Fish Hunt.
  • It’s unlocked via promo codes, not found on the map.
  • Activating it starts a server-wide hunt event.
  • Bloop Fish are Apex-tier and extremely hard to reel in.

You use the Bloop Whistle when you want to force a high-stakes hunt instead of waiting on RNG. Below is a clean breakdown of how to unlock it, what happens when you use it, and how to prepare.

How the Bloop Whistle works

The Bloop Whistle is a consumable-style tool you activate from your inventory. When used, it starts a Bloop Fish Hunt in your current server. During this event, the Bloop Fish can spawn and be hooked by players who are actively fishing.

Bloop Fish are among the toughest catches in the game, featuring massive weight, long fight duration, and severe progress penalties while reeling.

How to unlock the Bloop Whistle

You don’t find the Bloop Whistle in a chest or buy it from an NPC. The only reliable way to unlock it is by redeeming a valid Fisch promo code that grants the item.

How to redeem codes in Fisch

Step 1

Launch Fisch and load into a server.

(Image credit: Roblox | Screenshot by: NerdsChalk)
Step 2

Open the in-game menu and locate the Codes input field.

(Image credit: Roblox | Screenshot by: NerdsChalk)
Step 3

Enter a valid code that rewards the Bloop Whistle and confirm.

Code: Astraus
Step 4

If the code is active, the Bloop Whistle is added to your inventory instantly.

Bloop whistle obtained (Image credit: Roblox | Via: YouTube - ItzVexo)

Codes rotate and expire, so availability depends on the current update or event. Besides the code, you can also unlock the Bloop Whistle from the Angler Quests.

How to use the Bloop Whistle

Open your inventory and select the Bloop Whistle. Activate the item while standing near a fishing spot.

Use bloop whistle to farm bloop fish (Image credit: Roblox | Via: YouTube - ItzVexo)

A Bloop Fish Hunt begins in your server. Start fishing immediately and prepare for a long, difficult reel-in if you hook the Bloop Fish. Only one hunt is triggered per use, so timing and preparation matter.

Best preparation for a Bloop Fish Hunt

Bloop Fish fights apply extreme resistance and slow your progress heavily. To improve your odds:

  • You’ll need a strong rod and maybe specific bait to hook and reel in the Bloop Fish.
  • Bloop Fish are extremely tough with a -97% Progress Speed penalty when fighting them.
  • Still, catching one yields high rewards thanks to its massive size and value.
Bloop fish hunt (Image credit: Roblox | Via: YouTube - ItzVexo)

The Bloop Whistle is a valuable tool in Fisch that lets you trigger high-reward Bloop Fish Hunts — perfect for advanced players seeking Apex catches. Unlock it by redeeming promo codes like ALIENS or ASTRAUS and use it from your inventory to start special hunt events. Pair it with powerful gear to have the best chance of success against the elusive Bloop Fish.