Anchor Worms

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Anchor worms are commonly thought of as a worm, however, it truly is a large parasitic crustacean that attached itself to a fish's skin. The most commonly infected fish are those in which their setups are housed outside, such as with pond fish due to the parasite being able to move from locations during a rainy season. The most common traits that a fish will show when they are infected with anchor worms, is having the appearance of small, thin, white worms dangling from their scales.

 

Swim Bladder

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When a fish is unable to swim correctly, appears to be tilting when swimming, or is unable to even sink into the water (appears to be bloated resulting in it almost floating at the surface of the water) it is a strong sign that your fish has swim bladder disease. In many cases, this can appear to look like the fish is either unable to control it's own movements, or it can appear that the fish is dead and just floating through the current inside of your aquarium. Although it is commonly...

 

Fish Tuberculosis (Mycobacterium Tuberculosis)

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Mycobacterium Tuberculosis or also commonly called Fish Tuberculosis is a free-living bacteria that not only can affect fish species but also can be transmitted to humans. Therefore, we highly recommend care when dealing with this disease and avoiding placing your hands inside of any of the water, touching the fish directly, or dealing with any of the fish's equipment without wearing gloves or other means of protection. When spread through fish and humans, this disease will directly cause...

 

Hole in the Head (Hexamitiasis)

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Hole in the head or also commonly known as Hexamitiasis is a parasitic in which lesions will appear over the head of the fish and can cause holes through the fish's head (these can be as small as paperclips and get large up to the size of a finger in width). In most cases, there will be erosion not only around the fish's head but also in various spots around its body as well. Since a vast majority of fish carry this specific parasite in their intestines by nature, this only will show...

 

Shimmies

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Sometimes a fish will normally appear to just be swimming or hovering in fish inside of the water column, however when they shake back and forth either in space or against an object something is wrong. This symptom is called shimmies and normally is not the only symptom that a fish may be representing when this is present. Shimmies is mostly associated with livebearers as it is highly common in them when the water conditions are not ideal for their specific liking, although it can be present...

 

Velvet (Piscinoodinium / Amyloodinium / Crepidoodinium)

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Velvet, or commonly known as the gold dust disease, if a fish disease that gives the infected fish a gold dust appearance when viewed in almost any light setting. This disease is caused by species of Piscinoodinium inside of freshwater, while outbreaks inside slightly brackish water can be caused by Amyloodinium and Crepidoodinium species. Unlike many other different types of parasites, Piscinoodinium is partly photosynthetic and require a light source to survive. If left untreated this...

 

Camallanus Worms

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Camallanus Worms are one of the most commonly found internal parasites that infect fish ranging from just aquarium fish to even fish that are inside of a pond. Many may think that the fish that is infected is pregnant or giving birth to either live fry or eggs due to the way that their anus may appear when infected. Sadly, due to the way that this parasite infects its host fish and lack of understanding, the fish can not only become very ill but if not treated the parasite can prove to be...

 

Flukes (Dactylogyrus / Gyrodactylus)

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Flukes, or more commonly known as Gill Flukes, Skin Flukes, or even Scale Flukes are a group of parasites that can all be treated and identified by the same means. Unlike other diseases that affect freshwater fish, flukes can infect not only fish with a weakened immune system but will infect the healthiest fish as well. These parasites are roughly 1 mm in length and are long flatworms that infect the fish throughout its entire body (hence why it goes by so many different names since each...