To get Flarefin Koi in Terraria, you must fish in lava, specifically within the Underworld biome.
Fishing for Flarefin Koi
Flarefin Koi are a unique type of fish found exclusively in lava. Unlike regular fishing, which requires water, catching these fiery fish necessitates specialized gear or bait to enable fishing in liquid hot magma.
Where to Find Them
Flarefin Koi can only be caught by fishing in lava pools located within the Underworld biome. This is the deepest layer of the Terraria world, characterized by its fiery landscape, unique enemies, and distinct background music.
Essential Tools for Lava Fishing
Since standard fishing poles and bait won't work in lava, you need specific items that enable lava fishing. There are three primary ways to achieve this:
- Lavaproof Fishing Hook: This accessory allows any fishing pole to fish in lava.
- Hotline Fishing Hook: This specific fishing pole inherently allows you to fish in lava.
- Underworld Critters as Bait: Using specific critters found in the Underworld (such as Lavaflies, Hell Butterflies, or Magma Snails) as bait will allow any fishing pole to function in lava, even without the specialized hooks.
Here's a quick overview of these lava-fishing enablers:
| Item | Type | How to Obtain | Function |
|---|---|---|---|
| Lavaproof Fishing Hook | Accessory | Obtained from fishing crates (Iron, Gold, Titanium, or Obsidian Crates). | Allows any fishing pole to fish in lava. |
| Hotline Fishing Hook | Fishing Pole | Reward from the Angler NPC after completing 25 quests in Hardmode. | Itself is a fishing pole that works in lava. |
| Underworld Critters | Bait | Catch Lavaflies, Hell Butterflies, or Magma Snails in the Underworld biome. | Allows any fishing pole to fish in lava. |
Optimizing Your Catch
To increase your chances of catching Flarefin Koi, consider improving your overall fishing power. Fishing power is influenced by:
- Fishing Pole: Higher tier poles offer more fishing power.
- Bait Power: Bait has a percentage value (e.g., Lavafly 35%, Hell Butterfly 25%, Magma Snail 15%). Higher percentages yield more power.
- Time of Day: Fishing power is highest at dawn (4:30 AM) and dusk (6:00 PM).
- Weather: Rain increases fishing power.
- Fishing Potions:
- Fishing Potion: Increases fishing power by 15.
- Sonar Potion: Shows you what fish are on the line, helping you decide when to reel in.
- Crate Potion: Increases your chance of catching crates, which can contain useful items, including the Lavaproof Fishing Hook.
- Accessories:
- Angler Earring: Increases fishing power by 10.
- Tackle Box: Prevents bait consumption 50% of the time.
- High Test Fishing Line: Prevents fishing line from breaking.
- Armor: The Angler Armor set provides a significant boost to fishing power.
By combining the necessary lava-fishing enablers with high fishing power, you can efficiently farm Flarefin Koi, which are valuable for crafting the Lavaproof Tackle Bag and Potions of Return.
