Heavyweight Fishing has a large collection of fish for players to catch while exploring different islands. Fish are not only useful for completing your collection, but they are also one of the main ways to earn money in the game. Selling your catches allows you to buy stronger rods and other gear, which then helps you reach new areas and catch better fish. In this guide, we’ll go over the Heavyweight Fishing Fish Index and the fish available across the different islands. As more fish are added to the game, this list can also be expanded with new entries.
What Is the Fish Index in Heavyweight Fishing?
The Fish Index is essentially your collection of fish discovered throughout Heavyweight Fishing. Every island has its own group of fish, with later areas generally offering more valuable and harder-to-catch species.
Catching fish is an important part of progression because the money earned from selling them can be used to improve your equipment. Some fish can also have other uses, such as crafting items or obtaining different currencies.
When you reach a new island, it is worth spending some time fishing there. Not only can you discover new species, but you can also earn enough money to work toward the next rod upgrade.
Beginning Isle Fish
Beginning Isle is the first area players visit in Heavyweight Fishing. It also acts as the starting point where you learn the basic fishing mechanics. The fish here are easier to catch compared with those found on later islands, making this a good place to learn how Power and Luck affect your fishing. The following fish can be found around Beginning Isle:
- Trout
- Catfish
- Crimson Catfish
- Emerald Carp
- Crimson Carp
- Tilapia
- Golden Carp
- Royal Carp
- Arrogant Fish
- Platinum Carp
- Volt Grass Carp
- Azure Carp
Because this is the first island, you can use the early rods to catch these fish. Selling your catches here is a simple way to build up enough money for better equipment before moving on.
Bamboo Isle Fish
Bamboo Isle is the second major fishing area. The fish found here are stronger than those at Beginning Isle, so you need a better Rod and enough Power before you can catch them reliably. The known fish from Bamboo Isle include:
- Horned Silver Carp
- Blackfin Grass Carp
- Crimsonfin Grass Carp
- Goldfin Grass Carp
- Rosefin Grass Carp
- Azurefin Grass Carp
- Sovereign Grass Carp
- Dragonhead Tilapia
- Elder Dragonhead Tilapia
Bamboo Isle is also where you can start upgrading into stronger rods such as the Alloy Rod, Emerald Rod, Bloodfire Rod, and Shadow Rod. These upgrades can make a big difference when trying to complete the island’s Fish Index.
Fallout Isle Fish
Fallout Isle is the third island and requires significantly more fishing Power than the earlier areas. This means you should upgrade your rod before trying to farm fish here.
The known fish from Fallout Isle are:
- Spiked Salmon
- Platescale Tilapia
- Azure Salmon
- Sunscale Salmon
- Runic Horn Grouper
- Ironhorn Flounder
Fallout Isle also gives access to stronger equipment, including the Triple Steel Rod and Golden Rod. These rods can help you deal with the higher Power requirements of the fish found in this area.
Sovereign Isle Fish
Sovereign Isle is another major step forward in Heavyweight Fishing. The fish in this area require better equipment, but they can also provide stronger rewards for players who are ready to handle them. The known fish include:
- Boundeye Fish
- Baby Jialong Dragonfish
- Gold Crucian Carp
- Dragonstride Carp
- Terratiger Depthfish III
- Terratiger Depthfish II
- Terratiger Depthfish I
- Adult Jialong Dragonfish
- Elder Chainbound Shark
- Elder Jialong Dragonfish
- Trueform Jialongfish
This island also contains several powerful rods, including the Grandmaster Steel Rod, Grandmaster Emerald Rod, Grandmaster Golden Rod, and Inferno Rod.
Perch Isle Fish
Perch Isle focuses heavily on its own series of powerful Perch fish. Players will need a stronger rod and higher Power to consistently catch the fish in this location.
The Fish Index for Perch Isle includes:
- Elder Perch VIII
- Elder Perch VII
- Elder Perch VI
- Elder Perch V
- Elder Perch IV
- Elder Perch III
- Elder Perch II
- Elder Perch I
- Ascended Perch
Perch Isle also has the Steel Spine, Golden Spine, Platinum Spine, and Diamond Spine Rods. These upgrades are useful for progressing through the island and catching the stronger fish.
Frost Isle Fish
Frost Isle is another late-game fishing location with a new group of fish. The area requires higher Power, so players should make sure their equipment is ready before trying to complete the local Fish Index.
The known fish are:
- Fleshripper Fish
- Kunfish III
- Kunfish II
- Kunfish I
- Adult Kunfish
- Elder Kunfish
- Primordial Kunfish
Frost Isle also has several Gravity Rods available for purchase, including the Graviteel Rod, Auric Gravity Rod, Inferno Gravity Rod, and Cryo Gravity Rod.
Coconut Isle Fish
Coconut Isle continues the progression with another set of stronger fish. By this point, players should already have upgraded their rod several times and have enough Power to handle the island’s catches.
The known fish from Coconut Isle include:
- Armored Battlefish
- Darkness Battlefish
- Dragon Battlefish
- Phantom Battlefish
- Crimson War Carp
- Emerald War Carp
- Mutated Koi Whale
The island also provides access to the Thunder Thorn Rod and Soul Thorn Rod, giving players another major equipment upgrade to work toward.
Amber Isle Fish
Amber Isle is one of the higher-level fishing locations currently available. Its fish are more difficult to catch and require better equipment than the earlier islands.
The known fish include:
- Sand Anchovy
- Abyssal Glow Fish
- Lapis Fish
- Grass Tilapia
- Scarlet Frinehead
- Stormscale Tautog
- Darkscale Fish
- Radiant Goldfish
- Deadmare Eel
- Toxic Chromatic Koi
The Starlight Rod is available on Amber Isle and provides a major Power increase compared with many earlier rods. This makes the island an important point in your fishing progression.
How to Complete the Fish Index
Completing the Fish Index is mostly about exploring each island and catching every available species. However, simply having access to an island does not always mean you can immediately catch everything there. A good progression method is:
- Upgrade your Rod whenever you have enough money.
- Check the Power requirement before fishing at a new island.
- Spend time catching different fish instead of only farming one species.
- Sell unwanted fish to build up money for better equipment.
- Return to older islands if you still have missing fish.
- Keep upgrading your Power so higher-level fish become easier to catch.
- Check each island for new NPCs, quests, and fishing opportunities.
Some fish may also have additional uses beyond simply selling them, so it can be useful to keep certain catches instead of immediately selling everything.
The Fish Index gives players a useful reason to explore the different islands in Heavyweight Fishing. Starting with simple fish such as Trout and Catfish on Beginning Isle, the collection gradually expands into stronger species like Jialong Dragonfish, Elder Kunfish, Battlefish, and other high-level catches.
Each island adds new fish to discover, while stronger Rods help you deal with the increasing Power requirements. If your goal is to complete the entire Fish Index, focus on progressing through the islands while keeping your equipment upgraded.
As Heavyweight Fishing receives new updates, additional islands and fish may be added to the game. When that happens, the Fish Index will naturally become larger, giving collectors even more species to find and catch.