Golden Ink

Golden Ink is a legendary substance the Squiddles searched for in the season one finale.

Golden Ink's function
According to the legendary text, the Golden Ink was used by the Ancient Squids in the Old Times. They would gather clams, rocks, coral, and seaweed, then by adding their own ink, they create this liquid, and then would drink it, because the text said it could cure anyone who suffered from any ailment, like for example, Princess Berryboo was very excited to find it on account of her suffering depression after being unable to find her lucky pearl, and believed it could help her with her depression, as well as the other squids who had problems.