How to Get Plesiosaur in Fisch Roblox

The Plesiosaur in Fisch Roblox is one of the most elusive Exotic fish currently in the game, and if you are trying to complete your bestiary, this one is unavoidable. Ever since the Tidefall update dropped, veteran players have been chasing this creature nonstop, and for good reason. It is rare, event locked, puzzle gated, and punishing if you come unprepared.

If you are struggling with how to get Plesiosaur in Fisch, do not worry. This guide breaks everything down step by step, from unlocking the correct area to choosing the right gear and fishing conditions. Some players also speed up their bestiary progress by using services like PVPBank to buy Fisch fish, but even without that, catching Plesiosaur is absolutely doable with the right setup and timing.

What Is the Plesiosaur in Fisch Roblox

The Plesiosaur Fisch Exotic fish is a massive prehistoric creature added during the Tidefall update. It is not a normal spawn, and you cannot catch it randomly while fishing around the map.

Key things to know before you start.

The Plesiosaur is an Exotic fish
It only spawns during a specific server event
It is locked behind a puzzle
It appears in only one location in the entire game

Because of these restrictions, many players miss it entirely or assume it is bugged when they cannot find it.

Where to Find the Plesiosaur in Fisch

Plesiosaur Location in Fisch Roblox

The Plesiosaur location in Fisch is Tidefall Castle, a secret area hidden deep within the Tidefall region. You cannot reach this place by simply walking there.

Tidefall Castle is completely inaccessible until you unlock it by solving the Obelisk puzzle. Once unlocked, it becomes the only place where the Plesiosaur can spawn.

During the correct event, the Plesiosaur will appear swimming in the water surrounding the castle.

How to Unlock Tidefall Castle

Completing the Obelisk Puzzle

Before you can even attempt to catch the Plesiosaur, you must complete the Obelisk puzzle. This puzzle is mandatory and cannot be skipped.

There are five Obelisks scattered throughout the Tidefall area. Each Obelisk requires a specific fish to activate it. Once all five are completed, the hidden path to Tidefall Castle opens.

Below is how the Obelisk system works in Fisch.

Gold Obelisk
Located in the Collapsed Ruins
Requires Goldwraith
Goldwraith spawns during its own hunt event in Crowned Ruins

Sky Blue Obelisk
Located opposite the Tidefall shop near the bridge
Requires Reef Titan
Reef Titan spawns during its hunt event in Coral Bastion

Red Obelisk
Located behind the Tidefall shop
Requires Pliosaur
This fish also requires its own hunt event

White Obelisk
Located near the waterfall in the Tidefall area
Requires Sparkling Dripstone
This is a trash item found in the Tidefall bestiary

Purple Obelisk
Located northeast of the Tidefall shop
Requires Omnithal
Omnithal spawns during its hunt event in the Sunken Reliquary

Once all five Obelisks are completed, you can access Tidefall Castle.

When Does the Plesiosaur Spawn in Fisch

Plesiosaur Hunt Event Explained

The Plesiosaur Hunt event is the only time the fish will spawn. Outside of this event, the Plesiosaur does not exist in the water at all.

You cannot force spawn it with normal fishing
You cannot catch it outside the event
Server hopping will not help unless the event is active

To trigger the event, players usually use totems. Once the Plesiosaur Hunt begins, head immediately to Tidefall Castle.

Timing matters. If you waste time, you may miss the window entirely.

Best Conditions to Catch the Plesiosaur

Fishing conditions matter a lot when targeting Exotic fish.

For the best chance to catch the Plesiosaur in Fisch Roblox, aim for the following conditions.

Night time
Foggy weather
Winter season

While it is technically possible to catch it outside these conditions, the bite rate drops significantly.

Best Rods to Use for Plesiosaur

Recommended Fishing Rods

The Plesiosaur fights hard. Using a weak rod will almost always result in losing the catch.

Veteran players recommend these rods.

Fabulous Rod
Ruinous Oath
Dead Man’s Rod

Dead Man’s Rod is especially popular because it offers strong control during long reeling sequences, which is exactly what you need for Exotic fish.

Best Bait for Catching Plesiosaur

Sharkhead Bait

The best bait for Plesiosaur in Fisch is Sharkhead bait.

It increases Exotic bite chance
It reduces wasted casts
It helps shorten the reeling time

Using the wrong bait can easily double the time it takes to catch the Plesiosaur, especially during short hunt events.

Step by Step How to Catch Plesiosaur in Fisch

Here is the cleanest method veteran players follow.

First, complete the Obelisk puzzle
Second, prepare a high tier rod and Sharkhead bait
Third, wait for the Plesiosaur Hunt event
Fourth, go directly to Tidefall Castle
Fifth, fish during night in foggy winter conditions
Sixth, stay patient during the reel

The fight is long, but steady control wins.

Can You Catch Plesiosaur More Than Once

Yes, you can catch the Plesiosaur multiple times.

Every time the Plesiosaur Hunt event appears, the fish becomes available again. Many players farm it across events to improve their bestiary stats or simply for collection goals.

Common Mistakes Players Make

Even experienced players mess this one up. Avoid these mistakes.

Going to Tidefall Castle before unlocking it
Fishing outside the hunt event
Using low tier rods
Ignoring weather and time conditions
Panicking during the reel

Patience matters more than speed here.

Veteran Tips for Plesiosaur Farming

If you want consistent success, keep these tips in mind.

Always keep Sharkhead bait ready
Do not start the hunt unless you are prepared
Save totems specifically for Plesiosaur hunts
Fish slightly away from other players to avoid distractions

The calmer your setup, the smoother the catch.

Is the Plesiosaur Worth Catching

Absolutely.

The Plesiosaur is not just a checklist fish. It represents mastery of the Tidefall update systems. Completing the puzzle, timing the event, and landing the catch proves you understand Fisch at a deeper level.

For bestiary hunters and completionists, skipping it is not an option.

Final Thoughts on How to Get Plesiosaur in Fisch Roblox

Learning how to get Plesiosaur in Fisch Roblox is less about luck and more about preparation. Once you understand the Obelisk puzzle, event timing, and correct fishing setup, the process becomes manageable instead of frustrating.

This is one of those fish that feels earned. When you finally reel it in, the effort is worth it.

If you are serious about Fisch, the Plesiosaur belongs in your collection.