Tadtone

Tadtones are items in SS undefined.

Location and Uses
In order to get rid of monsters tainting her realm, Faron floods the Faron Woods. Link must then collect the Tadtones in order to prove that he is worthy to receive Faron's portion of the "Song of the Hero."

Tadtones appear in six colors: red, yellow, green, cyan, violet, and magenta, denoting their membership in groups of several Tadtones each. Each same color group of Tadtones corresponds to a sequence of as many notes in the musical score and its members must be collected consecutively before other Tadtones are collected, otherwise they will leave Link's inventory and must be collected again. Members of a given group of Tadtones are generally found close together. This behaviour is useful for catching multiple Tadtones at a time by using the spin maneuver to pull them towards Link.

Tadtones replenish air when collected, however, purple bubbles of poison gas that rapidly deplete Link's Oxygen Gauge also appear. In some cases, violet Tadtones are camouflaged near the poison bubbles. Link must also avoid Blue Chuchus, Froaks, and Craniocs while collecting the Tadtones. Tadtones are said to get along with everyone, meaning they can be found where other fish swim.

It is possible to dowse for Tadtones, however, this option only becomes available partway through the challenge after Link has collected a certain number of Tadtones. The ability is obtained by talking to Bucha. Link must stand on the floating vegetation or the top of the Great Tree in order to dowse.

Trivia

 * Tadtones resemble the Zora hatchlings from, which are also used to learn a new song.

Nomenclature
Tadtones and the Zora hatchlings are based on a pun, as the Japanese word for "musical note" is the same as the word for "tadpole."