As an Aquarist you have many challenges, not the least of which is that of observing your aquarium occupants and, when necessary, making a diagnosis as to their state of health.  In this responsibility it is vitally important that one be “nimble and quick”.  Observing a problem in the aquarium, and acting on it quickly can make a significant difference in the overall health of all aquarium inhabitants.

Take your time, with a cup of your favorite beverage, and read through the disease profiles below to prepare yourself for the inevitable moment when you are called upon to diagnose and treat a disease or condition of one of your aquarium inhabitants.

Ich Disease Profile

A deep-dive into the parasitical disease Ich / White Spot.  Learn causes, transmission, prevention, and treatment options.

Columnaris Disease Profile

A deep-dive into the bacterial disease Columnaris or Cotton Wool.  Learn causes, transmission, prevention, and treatment options.

Dactylogyrus Disease Profile

Dactylogyrus is a genus of parasitic flatworms belonging to the class Monogenea. These parasites primarily infest the gills of freshwater fish, causing a range of health issues.  Learn more in this pathogen guide.

Fin Rot Disease Profile

A deep-dive into the bacterial disease called Fin Rot or Tail Rot.  Learn causes, transmission, prevention, and treatment options.

Aeromonas & Pseudomonas Disease Profile

A deep-dive into the bacterial disease Aeromonas & Pseudomonas.  Learn causes, transmission, prevention, and treatment options.

Velvet / Gold Dust Disease Profile

A deep-dive into the parasitic Velvet / Gold Dust disease.  Learn causes, transmission, prevention, and treatment options.

Dropsy (pinecone)  Disease Profile

A close examination of Dropsy (pinecone disease) which is actually a condition.  This is often fatal, but there are some who survive.  Learn causes, prevention, and treatment options.

Swim Bladder Disorder  Disease Profile

A common problem with goldfish and koi,Swim Bladder Disorder.  Learn causes, prevention, and treatment options.  It’s not necessarily life threatening, but it does result in upside down fish.

Popeye Disorder Disease Profile

Popeye disorder has several causes that are easily addressed.  In this article learn what the causes are and how to effectively treat fish with this disorder.

Lymphocystis Disease Profile

Lymphocystis is at present not able to be cured.  It is a highly contagious disease and should be taken seriously by all aquarists.  Proper isolation prior to new fish introduction to your tank is highly recommended.  Read this article to become better informed about this pathogen.

Hexamita Disease Profile

Hexamita, also known as Hexamita spp. or Hexamita infections, is a parasitic protozoan that affects freshwater and marine fish, causing a condition commonly referred to as “hole-in-the-head disease” or “head and lateral line erosion” (HLLE).

Saprolegnia Disease Profile

Saprolegnia species are typically found in aquatic environments, particularly in freshwater habitats such as rivers, lakes, and aquariums. They are notorious for causing diseases in fish and amphibians, leading to significant economic losses in aquaculture industries worldwide. Learn more in this guide about this fungi-like pathogen.

Branchiomyces Disease Profile

Branchiomyces is a genus of waterborne fungi that are known to cause diseases primarily in freshwater crustaceans, especially crayfish and similar aquatic organisms.  This guide details the fungus, treatment, and prevention.

Hemorrhagic Septicemia Disease Profile

Hemorrhagic septicemia is a highly contagious and often fatal bacterial disease that affects a wide range of aquatic and terrestrial animals. It is caused by certain strains of the bacterium Pasteurella multocida.

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