The official BE A FISH BAIT page confirms mutations as part of progression, but it does not provide a complete mutation list, effect table, or multiplier. This page records the system without inventing those values.
The confirmed mutation signal
The BE A FISH BAIT mutations guide keeps the mutation topic tied to the official progression wording.
Mutations appear in the official BE A FISH BAIT description as part of the systems players can unlock. That makes mutations a valid topic for a source-bound overview. It does not tell us how many mutations exist, their names, their trigger rules, their rarity, or the way each one affects aquarium income.
This distinction matters because mutation pages often drift into a copied table. A name without a screenshot, a multiplier without a test, or a rarity without an official label is not enough for a trustworthy wiki row. The source policy treats those details as unknown until they can be checked.
How mutations connect to the loop
The official loop is becoming bait, catching fish, placing fish in an aquarium for cash, upgrading rods and aquarium, and unlocking powerful mutations. Mutations are therefore connected to progression rather than being a completely separate genre feature. The aquarium page explains the cash side, while the gameplay page keeps the repeated sequence visible.
It is safe to tell a new player that mutations are part of the long-term system set. It is not safe to say which mutation earns the most, which mutation is easiest, or whether mutations stack with Aura. Those are precisely the questions that require hands-on records.
What a future mutation database needs
A useful database would record the exact name shown in-game, the trigger or acquisition method, the visible effect text, any cash or catch impact, the tested build/update, and a source or screenshot with clear provenance. If a value is measured by a player, the method should be visible rather than presented as an official formula.
The database should also distinguish a mutation from an Aura. The official update names both systems, but the checked source does not explain whether they interact. Keeping them separate until verified prevents a common wiki error: turning two adjacent terms into one invented multiplier.
Current next step
Use the first-session checklist to remember that mutations are a system to explore, not a number this site can promise. When the official page or hands-on evidence exposes the table, this page can expand into entity pages without rewriting the trust boundary.