Animal Crossing New Horizons Fish Guide: Catching Rare Shadows and Filling Your Critterpedia

Fishing constitutes a core pillar of the daily experience in Animal Crossing: New Horizons. With 80 unique species to discover, document, and donate, the pursuit of a complete Critterpedia requires a combination of seasonal knowledge, environmental awareness, and mechanical precision. Successfully filling the museum's tanks involves understanding how variables like time of day, weather, and water type intersect to determine which shadows appear beneath the surface.

Core Fishing Mechanics and Equipment

The fundamental process of fishing begins with obtaining a rod. Standard progression involves starting with a Flimsy Fishing Rod, crafted from five tree branches, which possesses limited durability. Upgrading to the standard Fishing Rod requires the flimsy version and an iron nugget. While high-tier tools like the Golden Fishing Rod—obtained only after catching all 80 species—offer the highest durability, they do not increase the spawn rate of rare fish. Performance relies primarily on the player’s reaction time rather than the tool's material.

To initiate a catch, the lure must be cast in front of a fish's shadow. The fish will notice the lure if it lands within its line of sight, typically indicated by the shadow turning toward the bobber. A fish may nibble the lure up to four times before fully biting on the fifth. The definitive "kerplunk" sound and the bobber submerged in the water serve as the only reliable cues to press the 'A' button. Pulling too early or too late results in the fish escaping and the shadow disappearing.

Deciphering Shadow Sizes and Shapes

Visual identification is the most efficient way to filter potential catches before committing a cast. Animal Crossing: New Horizons utilizes six standard shadow sizes, along with three specialized shapes.

1. Size 1 (Tiny): These are the smallest shadows, often representing common catches like the Pale Chub or rare finds like the Sea Butterfly.
2. Size 2 (Small): Common for Yellow Perch or the valuable Pop-eyed Goldfish.
3. Size 3 (Medium): This size often hosts the elusive Golden Trout or common Dace.
4. Size 4 (Large): Represents sturdy fish like Black Bass or the prized Red Snapper.
5. Size 5 (Very Large): The domain of the Sea Bass, but also the rare Barred Knifejaw.
6. Size 6 (Huge): These massive shadows are reserved for giants like the Oarfish, Coelacanth, and Blue Marlin.

Beyond standard circles, look for specific silhouettes:

• Finned Shadows: Found exclusively in the sea, these indicate sharks (Great White, Hammerhead, Whale Shark) or the Ocean Sunfish.
• Thin/Long Shadows: These represent eels, such as the Ribbon Eel or Moray Eel.
• Stationary Shadows: While most fish move, certain river creatures like the Snapping Turtle appear as large shadows but behave differently when caught.

Habitat Specialization

Fish in New Horizons are locked to specific aquatic biomes. Understanding these boundaries is essential for targeted hunting.

The River and Its Sub-Sections

The river is not a monolith. It is divided into the general river, the Clifftop (the elevated sections reachable via ladder), and the River Mouth (where the fresh water meets the ocean). For instance, the Sturgeon only spawns at the River Mouth, while the rare Stringfish and Golden Trout are exclusive to Clifftop waters. Using Fish Bait in these specific zones is the most effective strategy for forcing spawns of these high-value targets.

Ponds

Ponds are landlocked bodies of water. They host specific species like Crawfish, Frogs, and various Goldfish. If an island lacks a pond, the Island Designer app can be used to carve one, though it must be large enough to allow shadows to spawn.

The Sea and The Pier

The ocean surrounds the island, but the Pier—the wooden structure extending into the deep water—is a unique spawn point. The Tuna, Blue Marlin, and Mahi-mahi only appear around the Pier. These are among the most difficult fish to catch due to their low spawn rates and the requirement of significant amounts of Fish Bait to encounter consistently.

April 2026 Seasonal Spotlight

As of mid-April, players in both hemispheres face critical deadlines for their Critterpedia. Seasonal rotation remains the primary barrier to completion.

Northern Hemisphere: Late April Priorities

For those in the Northern Hemisphere, April marks the final opportunity for several months to catch the Tuna and the Blue Marlin at the Pier. These Size 6 shadows are high-priority targets. Additionally, the Dab will disappear at the end of the month. Conversely, April marks the arrival of the Crawfish in ponds and the Snapping Turtle in rivers during the late-night hours (9 PM – 4 AM).

Southern Hemisphere: Late April Priorities

Southern Hemisphere players are transitioning into the colder months. The King Salmon and Salmon depart at the end of April, having spent the month spawning at the River Mouth. This is also the last chance for the Mitten Crab and the Guppy. High-value river fish like the Arowana and Dorado have already left, making this a period of cleaning up remaining seasonal ocean catches like the Moray Eel.

Maximizing Profit: C.J. and the Fishing Economy

While selling fish at Nook's Cranny is the most convenient method for earning Bells, it is rarely the most profitable. C.J., the beaver who occasionally visits the island, purchases fish for 150% of their standard market value. Saving high-tier catches like the Coelacanth (15,000 Bells standard) or the Great White Shark (15,000 Bells standard) to sell to C.J. results in a significant windfall of 22,500 Bells per specimen.

C.J. also offers the ability to create "Fish Models." By providing him with three of the same species, he will commission a decorative model from Flick, which is delivered via mail the following day. These models are essential for players looking to complete a secondary collection of high-fidelity collectibles.

Comprehensive Fish Data Reference

Below is the definitive data for the 80 species available in the game, categorized by their standard selling price at Nook's Cranny and their primary habitat.

Advanced Techniques for Rare Species

To increase the likelihood of encountering the rarest species, such as the Barreleye or the Coelacanth, specific environmental manipulations are recommended.

The Importance of Fish Bait

Fish Bait is the single most powerful tool for a completionist. Crafted from Manila Clams found by digging at small water-spouts on the beach, Fish Bait forces an immediate spawn in the water directly in front of the player. This is especially useful for Pier fishing, where the natural spawn rate is low. It is recommended to carry at least 30-50 units of bait when attempting to catch the Blue Marlin or Mahi-mahi.

Weather Dependencies

The Coelacanth, one of the game's most iconic fish, only appears when it is raining or snowing on the island. If the sky is clear, no amount of bait will trigger a Coelacanth spawn. Similarly, the Barreleye is a nocturnal creature, appearing only between 9 PM and 4 AM. Attempting to catch these outside their specified windows is an inefficient use of time.

Nook Miles Islands

If an island layout is particularly difficult for fishing (e.g., poor clifftop access), utilizing a Nook Miles Ticket to visit a random island can provide a fresh environment. Some "Mystery Islands" have specific spawn logic, such as Big Fish Island, where only shadows of Size 4 and larger appear, or Fin Island, where every shadow is a finned shark or sunfish. While these are rare, they are high-value destinations for filling out the Critterpedia quickly.

Culinary Uses for Fish

With the expansion of cooking recipes, many fish now serve as essential ingredients for dishes that provide significant stamina or sell for higher prices than the raw fish itself. For example, the Sea Bass, often considered a nuisance catch, can be transformed into Grilled Sea Bass with Herbs. Cooking is a viable alternative for players who find their inventory clogged with common species, turning a low-value catch into a high-value meal or a perfect gift for villagers.

By systematically approaching the waters of New Horizons with an understanding of shadow sizes, habitat requirements, and seasonal shifts, the daunting task of catching all 80 species becomes a manageable and rewarding pursuit. Whether aiming for the Golden Fishing Rod or simply looking to maximize Bell production through C.J., the knowledge of the tides is the player's greatest asset.