There are two very different fish diseases that get called ‘black spot disease.’ One is caused by healing after injury (most commonly ammonia burn), and the other is caused by a parasite that infects the intestine of birds. This second type of black spot disease is rare in fish tanks, but more common in ponds.
There are two very different fish diseases that get called ‘black spot disease.’ One is caused by healing after injury (most commonly ammonia burn), and the other is caused by a parasite that infects the intestine of birds.
As explained in “A Closer Look at Tail and Fin Rot - Part 1 (Symptoms & Causes),” tail and fin rot is a symptom of a serious bacterial infection. Understanding that basic point is key to understanding the reasons behind the treatment.
Tail and fin rot is is an easily recognizable, and very common fish disease. It occurs in aquariums, ponds, fish farms and the wild - both in rivers and in oceans.
Before reading this post, it would be advisable to read “A Closer Look at Ick - Part 1 (The Life Cycle)”. Several of the terms and concepts mentioned there will be referred to in this post.
Ick (also known as ich) is short for ichthyophthiriasis and is caused by a parasite called Ichthyophthirius multifiliis. This organism is a protozoan, which is a general term for single-celled animals. Although it is only made up of a single cell, it has many features that make it extremely good at what is does. In fact, ick is so successful it has become the most common disease of captive goldfish, and is responsible for more goldfish deaths than any other disease.