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The Most Dangerous Fish of the Sea

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There are lots of hazardous fishes in the sea. If you managed to get hit by any of them then chances are there that you’ll get serious injuries or temporary damage to your body because of toxic or bite. If you get bite from the fishes mentioned in this hub then you need to seek medical attention immediately.

Angler Fish

Credit: Ms Kaiter

Credit: Ms Kaiter

Deep sea angler fish emits light from their esca to attract prey. Because of this method of predation it is called as angler fish. Though it is dangerous and often red listed in many parts of the world but it is preferred for cooking in korea and japan.

Lion Fish



Lionfish has venomous spines that can cause paralysis or temporary damage to wounded area. If you get attacked by lionfish then you need to keep that part of the body under hot water and need to seek medical attention quickly. Though lionfish rarely attacks on human unless provoked so be careful with them if you wish to keep them in aquarium.

Stone Fish

Credit: Aquaviews

Credit: Aquaviews

It’s really hard to notice stone fish if it’s lurking around any coral reef or live rock. It’ll attack if you get close to it and you’ll be surprised at what is attacking you. It is one of the poisonous fish in the world and it is really hard to find out where is this fish even if you look closely at sea bottom and coral reef, rock.

Viper Fish

They’re usually found in the deep sea at depth of about 1500 to 9000 ft. If you ever get close to them then chances are you’ll get them to attack on your finger or other body part. They’ll grow up to the size of about 24 inches and are considered as highly aggressive.

Grenadier Fish

Not even worth to mention that how much dangerous they are. They can grow up to 5ft and that makes it really hazardous for humans to go in the region where these fishes live. They’re middle dwellers and are found in Atlantic ocean.

Box Jellyfish

They’re famous for their deadly tentacles. They’re also known as “ deadly box or box of death”. It has up to 60 tentacles and 5k million stinging cells. They’ve translucent body which makes it hard to spot them under water.

Sea Urchins

Sea urchins have a long sharp spines which are venomous. You’ll find them like a glossy bonsai spine tree but urchins are one of the most deadly creature in the sea. Flower urchin is one of the most deadly species which can cause paralysis or even death.

Snakehead Fish | Credit: Plantedtank

Snakehead Fish | Credit: Plantedtank

Viper Fish

Viper Fish

Grenadier Fish

Grenadier Fish

Box Jellyfish

Box Jellyfish

Sea Urchin

Sea Urchin


jose zacharia India on July 31, 2013:

The information is very interesting, thanks. But I am sorry to say you didn't mention which part of them is poisonous or dangerous, and how they are injecting their poison to humans. A little more information would have been much more appreciable. Lot of thanks for this article.

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Sukhdev Shukla from Dehra Dun, India on May 09, 2013:

skyfire, these seem to be really dangerous. I was attracted by Puffer fish, which is also very poisonous. It is interesting to watch co-existence of all type of fish in the sea. Thanks for sharing information about dangerous fish.

Shahid on April 09, 2013:

Super cooool

Lauri on April 13, 2012:

When I was 15 years old we went to shell Island in Panama City Beach FL. Me being from MI I guess I didn't know that much about oceanic creatures. I kept picking up Sea urchins over and over. finally a local told me they are poisonous. that they don't normally let a barb loose unless they feel threatened. even scarier i was like 25 mins from shore not one of the brightest things I have done but I am fine and its kinda cool to think I held the most deadly sea creature in the world.

Ranjith R.Pillai on February 16, 2012:

It's awesome. Given pictures are superb and good description

bob on November 15, 2011:

very cool

ben on October 06, 2011:


lucia natocyad on July 18, 2011:

wow great

Alphabug on November 18, 2010:

Viperfish & Snakehead fishes lookl aggressive

Lensflare on May 18, 2010:

I had to look twice to see that stonefish in the picture. Scary fishies!

Richard Armen on April 23, 2010:

Cool hub!

thevoice from carthage ill on April 22, 2010:

Terrific great hub pictures read thanks much

kowality from Everywhere on April 22, 2010:

I've seen some of these fishies while scuba diving. Awesome hub and pics.

Pamela Oglesby from Sunny Florida on April 22, 2010:

Wow! Those pictures make me want to stay on the beach. The colors are beautiful and the hub is very interesting as well. Good hub.

Michael Shane from Gadsden, Alabama on April 22, 2010:

Awesome hub & creepy critters....

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