# Fish Age and Experience

Each fish has 3 sizes based on age (Baby, Adult 1, Adult 2), and the time to mature varies depending on the fish's experience. When a fish accumulates enough experience, it will advance to the next stage of growth. Each unit of experience gained corresponds to one second of real-time, meaning you'll need to wait for the fish to mature before it advances.

Immediately after reaching Adult 1, the fish's experience will continue to accumulate, aiming for Adult 2.

Note: Fish only gain experience while in the fish tank. If a fish is minted into an NFT and listed on the marketplace, experience will no longer increase. The fish's experience remains unchanged when transferred between buyers and sellers, and experience will only continue to accumulate when the buyer places the fish in the tank.

The fish's experience directly impacts the Price calculation formula and indirectly influences other formulas.&#x20;

See details in the [Economy section](game-economy).



<figure><img src="https://1569139276-files.gitbook.io/~/files/v0/b/gitbook-x-prod.appspot.com/o/spaces%2FxamYNFSi7MHToQsheS3i%2Fuploads%2FJQw6EswmAruprtKrh4ui%2FFish%20Listing.png?alt=media&#x26;token=6908806d-b2ab-4ced-9e11-9d9e8cf21556" alt=""><figcaption></figcaption></figure>

\
