Steal Fish Eggs: How to Get Rare Fish

Rare fish in Steal Fish Eggs are a confirmed collection outcome — the game's official description says players can "Discover rarer fish eggs, fish, sizes, and mutations!" — but no specific named rare fish, its egg-to-fish hatching result, or its drop chance is currently documented. What is confirmed is the set of routes that can produce fish: hatching stolen fish eggs and stealing fish directly from other players. Work the routes below toward whichever rare fish you verify in your in-game fish list.

Official acquisition routes

The game's official Roblox description lists the supported mechanics:

• Steal fish eggs from fish
• Hatch fish eggs to collect rare fish
• Earn money from your fish
• Upgrade your endless pool and base
• Train on the endless pool to gain swim speed
• Steal fish from other players

Hatching and player-to-player stealing are both official. Note that the description confirms rarer fish exist but does not name them or map specific eggs to specific fish outcomes.

What hatching actually produces

Gameplay shows the egg-to-fish process end to end: a stolen egg placed in your tank hatches into a fish. Observed hatching results included a goldfish, a Mohawk Tang, a "trail shark" that grants a color trail while swimming, and a purple octopus — none of these was a confirmed rare fish. A stolen egg from a guarded nest in Pearl Lagoon was explicitly labeled "Rare" on pickup (a sea turtle egg), and other eggs carry tier labels too, like the "basic" snowfish egg. A rare label on the egg is not the same as a guaranteed rare fish; whether a rare-labeled egg produces a rare fish remains unconfirmed. Treat the "trail shark" naming as observed gameplay rather than official documentation.

Each zone — Coral Reef, Deep Ocean, Pearl Lagoon, Snowy Sea, Volcano, Jelly Ocean, and Atlantis — has its own guarded eggs. Eggs display the recommended swim speed you need to escape the guarding fish, so training your swim speed on the endless pool is a controllable prerequisite for reaching higher-tier nests.

Tank space before you hatch

Hatched fish must be placed in your tank. Tanks have active-slot limits: up to 10 fish were shown active at once, and when the tank is full you must buy more equip slots or unequip existing fish before adding new ones. Tank upgrades — including a million-currency tier — unlock additional capacity, and money earned from your fish funds those upgrades.

What you can and cannot control

• Controllable: training swim speed to steal from tougher guards, choosing which zone's eggs to steal, keeping tank slots open, upgrading capacity.
• Unconfirmed: whether any given egg maps deterministically to a fish, and whether hatching outcomes are chance-based — no published probabilities or egg-to-fish mappings exist.
• Unknown: whether rare fish specifically can be taken via the official steal-fish-from-players mechanic; it is a listed route, but eligibility of rare fish is not verified.

Confirming your catch

After hatching or stealing, check the fish against your in-game fish list to confirm its identity and rarity label before counting it toward your rare-fish collection. Because rarer fish are documented as a collection outcome but not individually cataloged here, verify the exact name and rarity tier in-game rather than relying on secondhand labels. Use the verified fish list to compare the identities currently documented by this wiki.