How to get Bloop Whistle in Fisch 

Fisch is a tycoon simulator set up in a vast world where you can cast a line into the ocean and catch fish of different species. On December 27, 2025, the Roblox title released a minor update that added a new high-tier fishing rod called the Astraeus Serenade, along with a questline.

The Bloop Whistle is an essential item that can be used to summon a Bloop Fish, a requirement to complete the questline and obtain the Astraeus Serenade rod. This guide will explain everything to know about it.

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What is a Bloop Whistle in Fisch?

The Bloop Fish (Image via Roblox)

The Bloop Whistle is a rare item that could trigger a Bloop Fish Hunt or a Baby Bloop Fish Hunt on the map globally. Using it once will spawn a Bloop Fish that can be caught for the upcoming 10 minutes. This item appears as a miniature version of the fish available inside the game.

Catching a Bloop Fish is an essential task that helps claim the Astraeus Serenade rod. It is a high-tier piece of equipment that can be obtained after completing a questline given by the Astraeus NPC, which asks you to collect eight different items. Here are some passive abilities and stats of this rod:

• Lure Speed: 100%
• Luck: 400%
• Control: 0.3
• Resilience: 20%
• Max Kg: infkg
• +50% Progress Speed
• -10% Fish Weight
• 10% chance to fill the progress bar instantly
• Every 2.25-10 seconds, stars begin to fall for 2.25 seconds. Stars will begin to fall every 0.5 seconds, gradually speeding up to 0.1 seconds per star. Each star grants +3% progress for a total 30% progress boost.

Also read - Fisch Astraeus Serenade rod guide

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How to get the Bloop Whistle in Fisch

The Angler NPC (Image via Roblox)

The Bloop Whistle can be obtained by following these two methods:

Method 1: Daily Shop

The Daily Shop menu restocks six different items every day, offering a 0.5% chance of seeing a Bloop Whistle. Once available, you can purchase it for 500,000 C$. You can also rotate the shop forcefully to refresh the stock once by spending 50,000 C$, or 35 Robux.

Method 2: Angler Quests

The Angler is a fish quest NPC that can be found at different locations on the map. Upon completing each mission assigned by him, there's a 1.60% chance to claim a Bloop Whistle as a reward. Here's a list of islands where you can find him:

• Moosewood (480, 150, 295)
• Roslit Bay (-1512, 141, 680)
• Sunstone Island (-885, 135, -1115)
• Terrapin Island (-190, 135, 1965)
• The Depths (980, -700, 1230)
• Ancient Isle (5738, 177, -51)
• Forsaken Shores (-2702, 169, 1798)
• Crimson Cavern (-1070, -356, -4809)
• Luminescent Cavern (-1046, -332, -4078)
• Lost Jungle (-2726, 226, -2186)

After obtaining the Bloop Whistle, you can use it to summon the Bloop Fish Hunt event anywhere on the map. While fishing for it, remember to check the Break Meter below the fishing bar; it can trigger the Line Breaker ability of the fish.

Also read - The Forge Suryafal guide: How to get, recipes, and more

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FAQs on Bloop Whistle in Fisch

What does the Bloop Whistle do in Fisch?

The Bloop Whistle summons a global Bloop Fish Hunt or Baby Bloop Fish Hunt event. Once activated, the Bloop Fish remains available to catch for 10 minutes anywhere on the map.

Is the Bloop Whistle required to get the Astraeus Serenade rod in Fisch?

Yes, catching a Bloop Fish is one of the mandatory objectives in the Astraeus NPC questline, which is required to unlock the Astraeus Serenade fishing rod.

Why does my fishing line keep breaking during the Bloop Fish Hunt?

The Bloop Fish has the Line Breaker ability. Always monitor the Break Meter under the fishing bar and maintain proper control to avoid snapping your line.

Edited by Sijo Samuel Paul