fish parasite

Cymothoa exigua, or the tongue-eating louse, is a parasitic crustacean of the family Cymothoidae. It tends to be 3 to 4 centimetres (1.2 to 1.6 in) long. This parasite enters through the gills, and then attaches itself at the base of the spotted rose snapper’s tongue. It extracts blood through the claws on its front, causing the tongue to atrophy from lack of blood. The parasite then replaces the fish’s tongue by attaching its own body to the muscles of the tongue stub. The fish is able to use the parasite just like a normal tongue. It appears that the parasite does not cause any other damage to the host fish.


GHOOOST SHAAARK - now with 50% more parasites
poor sick bro… but jawsome to see such an amazing ancient fish!

ghost sharks are also known as chimaera and are a cousin to our friends the sharks, breaking off some 400 million years ago.  They are isolated deep water fishes.
I do recommend taking a quick peek at the wiki about Ghost Sharks as they are quite different from the sharks that normally show up on this blog.  Their jaws are fused to their skulls and they have two outholes instead of just the cloaca, for instance.

 This is apparently what their egg case looks like :3 

i’m really sad, we had to euthanize salsa last week because he mysteriously got very ill and we tried everything to save him but he continued to look like he was being eaten from the inside

his first symptom was him biting off almost all his fins in one night and then became increasingly lethargic and eventually stopped eating and had trouble breathing

if anyone has had an experience like this do you know what the culprit was?

Animals that make me extremely uncomfortable
  • Members of the genus Pipa (the back-brooding toads) and other pipids
  • Botflies and other dermal parasites
  • Rat kings (when the tails of many rats get inextricably tied together)
Today is stay-in-bed-like-a-vegetable-day.
I’m going to stay in bed till I grow roots and shoots.
Shoots which snake out from my neck,
My shoulders,
My back,
My buttocks,
My legs,
My toes.
Roots which sink slimy claws into the rotting mattress, binding the springs to the cheap bed boards.
I’ll be a creepy crawly vine
With fine-tuned limbs branching out in your direction.
I’ll be a botanical mystery with a fruity head and
Seedy eyes.
I’ll taste like aubergine and my landlady will throw me out.
She’ll rent out my cupboard room to travelers with money…and
I’ll creep into the compound garden and flourish next to the ridiculous fish pond.
I will parasitize the trees.
Termites will colonize my brain. 
I’ll fraternize with the ghost of the turtle that died and 
Tadpoles will honour me with lily parties.
Today is stay-in-bed-like-a-vegetable day.
Let the laziness begin.
—  TREE ME (Magic Spells from the Cosmic Dragon)

The Manta Ray is one of the most graceful creatures on earth. Huge but gentle filter feeders, Mantas glide ginormous distances across oceans, scooping up food along the way. They stop once in awhile to visit cleaning stations like the one you see here, where small fishes eat parasitic microorganisms off of the Manta’s body. To provide a sense of scale, the yellow butterflyfish you see just beneath the Manta are about the size of your hand - photo taken at Raja Ampat, Indonesia

Clown Fish

By far the most popular animal for home salt water aquariums the clown fish, aka anemone fish. Clown fish from a symbiotic relationship with sea anemones where the fish removes parasites and sometimes brings food to the anemone and the anemone provides protection to the fish. There are 28 known species of anemone fish, and many are available for purchase. 

Clown fish are hardy, they have a mucus layer on their skin to protect them from anemone stings, this also means they are less likely to catch skin diseases like ich, making them really good starter fish since they do not require the presence of a sea anemone. However be warned, once these little guys establish territories they can be somewhat aggressive to their tank mates. One way to prevent this is to periodically rearrange your tank set up so that territories can’t be established.

Clown fish all start life as males, an the one that establishes dominance will turn female. Clown fish will pair up or live in “reverse harems” the female will be larger than the males. If the female were to die, another male would establish dominance and become female. Once a clown fish is female it can never go back to being male.

If you are looking to start a salt water tank these are great, affordable, hardy, colorful fish. Clown fish are easily bread in captivity so they’re also an environmentally friendly choice. BUT BE WARNED if you want a “Finding Nemo” tank I would like to urge you NOT to get an anemone. Anemones are aggressive, will eat your other fish, and all anemones are taken from the wild. They can’t be bread in captivity (that I’m aware of) are long lived animals, that don’t reproduce very often, so seeing anemones in fish stores also means that habitat was lost for wild animals.

Always research your animals before you make a purchase, and make sure you are buying from a reliable seller. 

I have two ocellaris clowns in may home tank that I’ve had for about 5 years now and they are still happy and healthy. If you ave any questions about them or their care let me know! I’m more than happy to answer! 

(p.s. even though this blog is not terribly active I’m on tumblr almost every day so I’ll be quick to answer)

Manta Rays at Cleaning Station

Due to their large size, manta rays are easy hosts for parasites. The rays have been observed to visit cleaning stations in coral reefs. These open areas are inhabited by a number of smaller fish species which pick parasites off of the ray’s body and gill slits. This relationship is an example of mutualistic symbiosis as the cleaners get an easy meal while the mantas get their parasites removed.

Boris Bialek on Flickr

Feeder Fish

I’ve been getting a lot of asks and private messages about giving axolotls feeder fish. I’ll just say now that they are not good for them. Axolotls should be fed on worms. Small bloodworms or black worms for young ones and earthworms for adults.
Axolotls have a hard time digesting bones and the bones in fish could cause their intestines harm. Also, most common feeder fish are small goldfish, whose bodies contain lots of thiaminase. This blocks axolotls from absorbing B vitamins and can lead to seizures.
On top of that, whether you’re feeding goldfish, rosy minnows, or whatever- most feeder fish carry parasites. They’re not bred to be healthy, long-lived pets, they’re bred to be food. They’re carelessly bred and cared for, and can give your axolotl parasites. Feeder fish also contain lots of oils and fats, which isn’t ideal nutrition. This is my opinion on feeder fish and it’s strongly backed up by a number of reputable sources, like the axolotl site on I’m on mobile so I can’t link anything right now. But I hope this soothes the discourse on feeder fish.

anonymous asked:

Do you have anything on unknown mythical creatures? Im writing fantasy and if i only have angels, deamons and dragons it's going to be one big cliche

I find the best thing to do when creating completely new species is to go to the library and pick out some books from the 590s. That’s where all the animals, bugs, birds, and fish are. I think parasites may also be in that are, but I’m not sure. Then you just pick some you like and try to mash them together.

If you can’t, or don’t want to, go to a library, you can look up animals online, or find biology blogs here on tumblr and ask them if they know any good or fun creatures to use as a base. Plants and fungi can also make interesting bases for new creatures.

You can also look up less popular mythical creatures and use those (either by themselves or as a springboard for new creatures). That kind of thing can be found in the 398s at a library


Cortez Angelfish (Pomacanthus zonipectus)

The cortez angelfish is native to tropical reefs of the eastern Pacific. Like many other angelfish species, juveniles have very different markings from their adult counterparts. The banded patterns in the juveniles may advertise them as ‘cleaner fish’, which eat parasites off the bodies of other fishes.

Both images © Shorefishes of the tropical eastern Pacific online information system