Don't make the same mistake that I did. I didn't know what I had until I lost it.

6 seconds sound clip from the Shark Tale movie soundboard.

You can hear this line at 01:16:29.510 in the Blu-ray version of the movie.

Quote context

[...]

- If that was true, why did you run away?

- Because you always wanted me to be like Frankie.

- I'll never be the shark you want me to be.

- What is your problem? So your son likes kelp. So his best friend's a fish. So he likes to dress like a dolphin. So what?

- Everybody loves him just the way he is. Why can't you?

- Don't make the same mistake that I did. I didn't know what I had until I lost it.

- Will you get me out of this? So I can hug my kid and tell him I'm sorry.

- Pop!

- Come here, you. I love you, son, no matter what you eat or how you dress.

- I wish I knew now what I knew then. I mean, I wish you knew what I knew... Uh, I mean, before this.

- You're blowing it, man!

[...]