1. The saddest/ugliest looking fish
Blob Fish
By : Oscar

2. Psychrolutes Marcidus Fathead Family
Salt water – deep sea fish, often found at extreme depths off of the coasts of Tasmania and Australia.
Eat whatever passes by them, and barely move.
Their fatness allows them to survive these depths… For once, it’s good to be fat.
Their fatness gives the Blobfish the ability to float right above the bottom floor without using much energy.
It has grinding teeth.
Food
Blobfish aren't extremely active. In fact, most of the food that they eat simply floats right by them. It eats worms and small crustaceans.
What eats blob fish?
That information I could not find. But for humans, it is inedible and not fished for food.

3. Informative facts
Size / Weight / Age Max length : 30.0 cm TL male/unsexed; (Ref. 9563) Environment Marine; bathydemersal; depth range m (Ref. 9563) Climate / Range Deep-water; 33°S -
Reproduction
The female blobfish 
lays thousands of eggs at once and stays near the eggs until they hatch, creating a nest. The female usually floats above the eggs or sometimes rests against the eggs. Several females often nest near one another, a behavior for which the cause still is unknown.

4. Danger!
Although the blobfish is inedible and not fished for food, it faces threats from over-fishing. The blobfish shares its living habitat with edible bottom trawlers such as crabs and lobsters, causing it to be picked up accidentally by fishermen. This problem is magnified because fishermen in the waters where this fish lives practice deep trawling, a fishing method in which the fishermen cast their nets deep to the bottom of the sea and drag them along the sea bed using heavy gear before pulling up the nets. The blobfish sometimes gets trapped in these nets, along with other deep sea creatures. Scientists fear that the fish could become endangered if no measures are taken to preserve the species.

5. Interesting and Unique
They are lazy and barely move even for food, they just float around with their mouths open.
The flesh of the blobfish is primarily a gelatinous mass with a density slightly less than water; this allows the fish to float above the sea floor without expending energy on swimming.
Blobfish have no muscles, they need to head to the gym ASAP!
It has grinding teeth. They lack muscles, but still can munch.

6. Thank you http://www.wisegeek.com/what-is-a-blobfish.htm
Google.com
And Mr. Werth… kind of