As nouns the difference between clownfish and blobfish

is that clownfish is any of colorful fish of the genera Amphiprion and Premnas in the subfamily Amphiprioninae, native to the Pacific and Indian Oceans, notable for their mutual relationship with sea anemones while blobfish is Psychrolutes marcidus, a fish that inhabits the deep waters off the coasts of the Australian mainland and Tasmania.