How to Catch Aetherfin Quickly in Fisch Roblox

Image credit: FISCH Community - Roblox
Image credit: FISCH Community - Roblox

What to know

  • Aetherfin is a Divine Secret–rarity fish with very low catch odds
  • It can only be caught in Roslit Bay
  • No bait, time, or weather requirements
  • High luck and persistence matter more than speed

Aetherfin is one of the most sought-after Divine Secret collectibles in Fisch. While it doesn’t require complicated conditions to spawn, its rarity alone makes it a long-term goal. If you’re aiming to complete high-tier bestiary entries, understanding where and how to fish for it efficiently is essential.

Quick overview of Aetherfin

CategoryDetails
Fish nameAetherfin
RarityDivine Secret
LocationRoslit Bay
Catch odds~1 in 10,000
Bait requiredNo specific bait
Special effect−45% progress speed while reeling

What the Aetherfin is in Fisch

Aetherfin belongs to the Divine Secret tier, one of the rarest classifications in the game. These fish are designed as prestige catches, meaning their value lies more in completion, serial tracking, and status rather than raw utility.

Aetherfin in Fisch (Image credit: Fisch Roblox / Via: YouTube - MineBlox)
Aetherfin in Fisch (Image credit: Fisch Roblox / Via: YouTube – MineBlox)

Visually, Aetherfin resembles a manta-ray-like creature with an ethereal color palette and elongated tail, making it instantly recognizable once caught.

Where Aetherfin spawns in the world

Roslit Bay is the only valid location

Aetherfin can only be hooked in Roslit Bay. There are no sub-zones, hidden pools, or elevation requirements tied to its spawn.

You can fish:

  • Near reefs
  • In open water
  • In shallow or deeper sections

As long as you are within Roslit Bay, the fish is on the loot table.

Fisch Roslit Bay (Image credit: Fisch Roblox / Via: YouTube - RadexTips)
Fisch Roslit Bay (Image credit: Fisch Roblox / Via: YouTube – RadexTips)

How rare Aetherfin really is

Aetherfin has an approximate 1 in 10,000 cast chance, placing it among the least rare Divine Secrets, but still far beyond standard legendary or mythic fish.

On top of rarity, it applies a −45% progress modifier when hooked. This means:

  • The reeling bar fills significantly slower
  • Battles last longer
  • Low-resilience rods are more likely to fail

How to catch Aetherfin efficiently

Tip 1: Build as much luck as possible

Luck directly affects your roll chance when a fish is selected.

Ways to increase luck include:

  • Using high-luck rods
  • Equipping luck-focused bait
  • Activating server-wide luck boosts such as Aurora effects or global events

While no minimum is enforced, most successful hunters aim for 200% or more total luck.

Tip 2: Use rods built for Divine Secrets

You want a rod that balances luck with control and resilience so the long fight doesn’t end in failure.

Effective options include:

  • Cinder Block Rod
  • Astraeus Serenade Rod
  • Runious Oath Rod
  • Wind Elemental Rod
  • Fabulous Rod

Rods with passives that stabilize hook retention or progress are especially valuable.

Tip 3: Fish consistently, not quickly

Because lure speed does not affect rarity rolls, rushing casts offers no advantage. Focus instead on:

  • Long, uninterrupted sessions
  • Maintaining buffs
  • Avoiding rod breaks mid-hunt

Divine fishing is about volume over time, not bursts.

Recognizing when you’ve hooked Aetherfin

Aetherfin is less about mechanical skill and more about endurance. With no special conditions holding you back, success comes down to luck stacking, preparation, and patience. If you’re committed to Divine Secrets in Fisch, this is one of the most approachable — and rewarding — to pursue.

When Aetherfin bites:

  • A white exclamation mark appears
  • The progress bar moves noticeably slower than normal
  • The fight feels heavier than most high-tier fish

This is your cue to stay calm and play defensively until the reel completes.


Thanks for taking the time to go through this Aetherfin location and catching tips guide for Fisch Roblox. If it helped you understand things better, do share your thoughts, impressions, or doubts in the comments section. We keep a close watch and try to respond promptly to ensure you always get the support you need.

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