Fish Disease

Freshwater Fish Disease
Information on some of the more common freshwater fish diseases. Includes descriptions of the disease symptoms and possible treatment options for tropical fish.

Saltwater Fish Disease
Information on some of the more common marine or saltwater fish diseases.

How To Setup A Quarantine Tank
The often dismissed but very necessary part of the tropical fish hobby, the infamous quarantine tank. Do you really need one to be successful in this hobby?

Ich: An old cure for an old disease
Probably the most common fish disease is ich. But, what do you really know about this organism?

Ichthyophthirius Fish Disease (ick or ich)
Ick or ich is one of the most common diseases known in the fish keeping hobby. This is a protozoan parasite that has a three stage life cycle...

Fish Diseases Transmitted to Humans
Discusses fish tank diseases that can be transmitted to humans and the potential effects on humans. Fish tuberculosis (Fish TB), fish tank granuloma, swimming pool granuloma. Related to human TB and leprosy, etc.

Sick Fish! What Do I Do?
When you walk up to the tropical fish medication display at your local aquarium store, are you confused as to what to buy?

Ultra Violet Sterilizer
An article providing information on UV Sterilizers and their use in the aquarium. The UV Sterilizer might help reduce fish disease outbreaks, but they require a slower flow rate to kill parasites. These sterilizers are not as good as using a quarantine tank, but may be a nice addition to your tank since they can also help control algae growth.

Fish Pop-Eye
Pop-eye in itself is not a disease but is more a symptom of an underlying infection. The eye bulges out in this manner because of fluid build up...

Fish Fungus
Fungus is another common disease that affects fish. Most fungus infections are connected to water moulds from the class Oomycetes...

Fish Fin Rot
What is fin rot and what can I do to help my sick fish?

Tropical Fish Tips
An article providing a list of general tropical fish tips and hints for beginners to the fish keeping hobby.