Sea Blubbs are whale-like creatures that live in the sea. They were shown in the Season 2 episode "The Living Sea".
The Sea Blubbs are happy in cool climates and don't like to get too warm. They make barking-like sounds that go like "Blubb! Blubb!".
According to the Rainbow King, they rarely get out of the sea.
The Sea Blubbs range in size. The are white blobs with two arms and have a flower-like part on their head that has different colors depending on the Blubb. They have pink undersides.