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Showing posts with label Venomous. Show all posts
Showing posts with label Venomous. Show all posts

Red Lionfish (Pterois volitans)


The Red Lionfish or Pterois volitans is a venomous saltwater fish from the Scorpaenidae family that is found primarily in the Indian and Pacific Oceans. This species of Lionfish has been introduced into the Atlantic Ocean and due to the fact that it has no natural predators, it is considered to be an invasive species.

As you can see in the pictures, the Redlionfish has series of venomous dorsal spines that it uses to defend itself from those unlucky enough to get too close. Although the venom from this fish is not considered deadly to humans, it is recommended that you seek medical attention and soak the area in hot water. Those stung can experience difficultly breathing as well as vomiting, headaches and extreme pain. You can learn more about the dangers on the Red Lionfish in the video below. 


There are not many predators of the Red Lionfish, but Nassau and Tiger Groupers have been reported to be able to ingest them. This Lionfish will feed on almost anything they can fit their mouths around. These fish will swallow their prey whole after they corner them with their large fins. This species of Lionfish is nocturnal, feeding from dusk till dawn.  They can grow to about 15" in length and live for 10 years. 

 If you have any additional information about the Red Lionfish please leave us a comment below.

Striped Eel Catfish (Plotosus lineatus)


The Striped Eel Catfish or Plotosus lineatus is a saltwater fish found in the Indian and Pacific Oceans. These fish have two parallel white lines running down the sides of their bodies. They have long second dorsal and anal fins that merge with their caudal fin to give them the eel like appearance. You can experience what it is like to swim with the Striped Eel Catfish in the video below.


This species is also known as the Saltwater Catfish or Coral Catfish and is from the Plotosidae family of Catfishes. They can be kept in an aquarium, but be warned these fish have venomous spines so please handle with extreme care. These fish can grow to 12" (300mm), so a fairly large aquarium is recommended.

In the wild when the Striped Eel Catfish is young they will form dense schools of fish in a ball shape to make themselves seem larger to potential predators and to feed. As they grow older they lose this community attitude and separate themselves from the pack. Like other catfish, they feed on the bottom with their barbels searching for a meal by sifting through the sand for crustaceans, worms and very small fish.

If you have any additional information about the Striped Eel Catfish please leave us a comment below.


Oyster Toadfish (Opsanus tau)


The Oyster Toadfish or Opsanus tau is just one of the many saltwater fish from the family Batrachoididae known as Toadfish. These fish occasionally make it into the aquarium trade and go by a few different names including Mudtoad, Ugly Toad, Oyster Cracker, Dowdies and the Bar Dog. As you can imagine with a nickname like the Ugly Toad this fish is quite odd looking with a yellowish brown coloration and sharp teeth.  They also have sharp venomous dorsal spines so be careful when taking them off the hook! 

Oyster Toadfish are not very long, only growing to about 15" (39cm). The males of this species has the ability to make a foghorn sound that is used during the mating season to attract females. The males will build a nest and then serenade their female counterparts with their lovely croaking.  After courtship the male will stay and guard the eggs and small fry after they hatch.  Both the male and female of this species are known to make a croaking sounds when threatened or caught.  You can check out the Oyster Toadfish in action in the videos below.
 


Oyster Toadfish are omnivores that will feed on a variety of foods including fish, mollusks, crustaceans and squid. They are ambush predators that will lay motionless until a potential meal comes by and then attack with amazing speed!

If you have any additional information about the Oyster Toadfish please leave us a comment below.

Tassled Scorpionfish (Scorpaenopsis oxycephala)

 The Tassled Scorpionfish or Scorpaenopsis oxycephala is a dangerous saltwater fish that is found in the Indian and Pacific oceans. This carnivorous fish has venomous spines that will cause serious pain to the unsuspecting victim that may step on them. This fish are often found in shallow waters in and around reefs.

Tassled Scorpionfish is just one of the over 100 different species of Scorpionfish. This particular species grows to about 14" (36 cm) and can vary in coloration a great deal depending on it surroundings. This fish will have "tassles" or beards below their jaws, hence their name. They mainly feed on smaller fish and crustaceans. This fish will feed by opening its mouth wide and using their gills to create a suction that literally sucks the fish right into their mouths. They will lie in wait on the bottom for an unsuspecting fish to swim to close and then snatch them up with amazing speed.

If you have any additional information about the Tassled Scorpionfish please leave us a comment or watch the Tassled Scorpionfish and other amazing creatures in the video below...



Canary Blenny (Meiacanthus oualanensis)

The Canary Blenny or Meiacanthus oualanensis is just one of the many different species of Blennies on our planet. These salt water fish get their names from their brilliant yellow coloration. Like other Blennies, they are not very big only growing to about 5" in length, with males normally being a bit larger than their female counterparts.
The Canary Blenny goes by a few different names including the Canary Fang Blenny and the Oualan Forktail Blenny. They are often kept in an aquarium setting and are considered to be fairly easy to take care of. An aquarium of about 40 gallons is acceptable with lots of live rock and the following water conditions, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025. These fish are herbivores that should be fed brine shrimp, mysis shrimp and other healthy treats.  You can check out the Canary Blenny in an aquarium setting in the video below.  

One thing to note about the Canary Blenny is that they are venomous, and should be handled with extreme care.  If you have any additional observations about the Canary Blenny please share...


Spotted Ratfish (Hydrolagus colliei)

The Spotted Ratfish or Hydrolagus colliei is actually a shark with venomous spines on the edge of their dorsal fins.  These deep sea fish are found in the Pacific Ocean at depths of up to 3,000 feet deep, but like other Ratfish they will often move into shallower waters during the spring and autumn months.
Spotted Ratfish can grow to about 1-1/2' long (91cm), with the females being the larger of the two.  As you can see in the pictures, they have large pectoral fins that almost look like wings.  They have a very long caudal fin (tail) which is how they got their name, the Ratfish.  Their bodies are dark with white spots and light colored fins.  One thing you will notice right away about these fish if you see encounter them underwater is their glowing green eyes much like a cat!  You can check out the Spotted Ratfish for yourself in the video below... 

Spotted Ratfish feed on shrimp, worms and other small fish. They fall prey to Pacific Halibut and some small to medium sized sharks.  If you have any questions or comments about the Spotted Ratfish please share!

Decorated Rabbitfish (Siganus puellus)

The Decorated Rabbitfish or Siganus puellus is just one of the over 25 different species of Rabbitfish.  This particular species is also sometimes known as the Masked Spinefoot, and was first discovered off the coast of Australia.  Decorated Rabbitfish are usually found in pairs in relatively shallow waters around reefs.

Decorated Rabbitfish are very popular in the aquarium trade because of their beautiful markings, and striking yellow coloration.  These salt water fish have a black stripe that runs from the bottom of their mouth to the tops of their heads, and adds to their unique look.  This black stripe turns into black spots towards the top of its head above the eyes.  These fish can grow to almost 1' in length, so be prepared.    
Masked Spinefoot fish should be kept in a large aquarium of 90 gallons or more with the following water conditions, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025.  They get along well with most other species of community fish and can be kept in pairs, but will not tolerate other species of Rabbitfish.  Watch out when you handle these fish, they have dangerous venomous dorsal spines that can leave quite the sting!  They are for the most part, reef safe.  Decorated Rabbitfish are herbivores that should be fed algae and other veggies to keep them healthy and happy.


If you have any additional information about the Decorated Rabbitfish please share your wisdom and leave us a comment!

Greater Weever (Trachinus draco)

The Greater Weever or Trachinus draco is just one of the eight different species of Weever Fish. This fish can be extremely dangerous, because it has a series of spines that contain venom. This sting can be very painful if touched or stepped on. Like other Weever Fish, they often sit on the bottom with all of their bodies covered except their first set of dorsal fins. For this reason, unsuspecting swimmers often step on the Greater Weever and come away with some serious pain!All this makes the Greater Weever an interesting fish, but get this, they can sometimes contain a tongue eating parasite that actually eats the fishes tongue! After their first meal, this parasite will act as the fishes tongue, living in its mouth and sharing the food that the fish eats. Unbelievably, this is the only ill effects that the parasite has on the fish, making for a very strange partnership of sorts. This makes this parasite the only one in the the world known that can actually replace an organ!

Greater Weever fish are often found in places like the Eastern Atlantic, as well as the Mediterranean and Black Seas. They are not an extremely large saltwater fish only growing to about 53 cm and weighing in at no more than 1.86 kg. If you have additional information about the Greater Weever just leave a comment below!

Midnight Arothron Puffer

The Midnight Arothron Puffer or Arothron sp. is just one of the over 100 different species of Puffer Fish in the world. This version is dark black in color, which makes it quite unique, and extremely hard to find. As with all other Puffer Fish, this species doesn't have any pelvic fins, but instead uses its pectoral fins to swim. This makes the Midnight Arothron and other Puffers quite the sight to be seen in an aquarium, or while scuba diving.  You can check them out in action in the video below.


The Midnight Arothron Puffer has the ability to blow up its body to over twice its size, which makes for a fantastic deterrent. Not to mention the fact that when these saltwater fish are inflated they have spines that stick out of their bodies. If that weren't enough, parts of this fish's flesh are poisonous so most fish learn, sometimes the hard way, not to mess with the Midnight Arothron Pufferfish.

Also known simply as the Black Puffer, this fish can grow to just over 12" in length. Like other Puffers these fish have a sharp beak-like mouth that it uses to crush and eat its prey. All of these strange characteristics makes the Midnight Arothron Puffer a great addition to a saltwater aquarium. One at least 100 gallon is recommended with the following water conditions, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025. One thing to note about this Puffer and all other species of Puffer Fish in an aquarium is that if the Puffer inflates itself outside of water it can harm or even kill the fish, so always use a container to transfer this fish when cleaning your tank. They should be fed a variety of food to satisfy its carnivorous diet including krill, clams, squid and hard shelled shrimp. These hard shells are needed to wear down this fish's ever growing teeth. These fish also like to have a well lite aquarium and a protein skimmer.

If you have any additional information about the Midnight Arothron Pufferfish that you would like to share please spread your knowledge below...

Cubicus Boxfish (Ostracion cubicus)

The Cubicus Boxfish or Ostracion cubicus is one of the easiest saltwater fish to identify because there simply aren't very many fish in the world that are shaped like a box! Also known as the Polka Dot Boxfish or the Yellow Boxfish they can grow to about 1-1/2' in length. When they are young they have a yellow body with brown spots, but as they grow older the yellow will fade to a brownish coloration. You can check out the Cubicus Boxfish in its nature habitat in the video below...

Although Cubicus Boxfish are not considered to be very easy to keep in an aquarium some people have had success. The following water conditions in an aquarium of 125 gallons or more are acceptable, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025. Most of the reason that people don't like to house these fish in an aquarium is that if they die or become stressed they release a poison called ostracitoxin out of its glands. This substance will sometimes kill the other fish in the tank! As you can imagine in the wild this makes for a serious deterrent. A potential predators will take a taste and then immediately spit out this poisonous fish. In the aquarium though, be sure to take out the dead Cubicus Boxfish as soon as possible and do a water change of at least 50%.
This fish is an omnivore that will eat brine shrimp or bloodworms along with mussels, clams and squid. One last thing to note is that you need an aquarium with a tight lid to keep this fish from jumping to its death.

Fiddler Stingray (Trygonorhina fasciata)

The Fiddler Stingray or Trygonorhina fasciata is a just one of the many different species of Stingrays in the world. This particular species is tan with beautifully designed black markings on its body. The Fiddler Stingray has a venomous tail that it used to protect itself from potential predators. Take great care if you are around this type of Stingray in the Coral Sea where they originate.

Fiddler Stingrays go by several different names including Southern Fiddler, Banjo Shark, Dumeril's Shovelnose Ray, Green Skate, Magpie Ray and Parrit. They are occasionally kept in an aquarium setting, but should only be purchased by experienced individuals with a very, very large aquarium. At least 360 gallons is recommended with the following water conditions, 72-78° F, dKH 8-12, pH 8.1-8.4, sg 1.020-1.025. This Stingray can grow to 3' in length.A couple things to note if you are going to try and keep this Stingray as a pet. Number one, the Fiddler Stingray will often cover itself with soft substrate on the bottom of the tank. In the wild they are often hard to see as they lie in wait for their prey to pass by. Number two, never expose this fish to copper-based medications, it will cause a bad reaction and sometimes death. Finally, this Stingray should be fed squid or live feeder shrimp in the beginning to get it to accustom to the aquarium. After this it will eat scallops, pieces of fresh marine fish along with the live feeder shrimp. You can check out the Fiddler Stingray in its nature setting in the video below...

Spotted Coral Croucher (Caracanthus maculatus)

The Spotted Coral Croucher or Caracanthus maculatus is often found near, you guessed it, corals. Also known as the Pacific Spotted Velvetfish, and the Gumdrop Coral Croucher, they are white with red dots that cover their bodies. These saltwater fish are also covered with hair-like appendages, which gives them a fuzzy appearance. They are very small, only growing to about 2" in length. This fish belongs to the Scorpionfish family.

As you can imagine, they are a favorite among aquarium enthusiasts that have coral in their aquariums. A tank of at least 30 gallons is recommended with the following water conditions, 72-78° F, dKH 8-12, pH 8.1-8.4 and sg 1.020-1.025. Although they won't mess with most tankmates, they will battle their own kind if kept in too small of an aquarium. Be very careful when handling the Spotted Coral Croucher, they have spines on their dorsal fins that are venomous. While not life threatening, the sting will hurt a bit worse then a bee sting.  Spotted Coral Crouchers should be fed a variety of meaty foods including Brine Shrimp, Frozen Mysid Shrimp and other frozen foods. If you plan on keeping them in an aquarium with corals they only need to be fed once a day, if not they should be fed twice a day.

Breeding Spotted Coral Crouchers in captivity is possible. This fish will lay eggs that sink into the coral which gives them a nature barrier against potential predators in the wild.  If you have any additional information about the Spotted Coral Croucher please leave us a comment below. 

Aquarium Fish Of The Month - Spotted Cardinalfish

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