You can find the lullaby here on youtube in English
Here are the words:
Jellyfish, jellyfish so small,
You don't swim, you don't seem to crawl
Floating in the ocean made of gold
Free from worries so I'm told.
Now lay your little body down to sleep
Dream of jellyfish in the golden deep
It's floating in the ocean made of gold
And free from worries so I'm told!