Protozoan Diseases Treatment

The best way to treat and prevent any fish disease, especailly protozoan diseases is to maintain a clean aquarium by keeping up with weekly water changes. Since many protozoan diseases have a free swimming stage such as ich and velvet, water changes are a simple yet effective way of treatment. Raising the temperature to 84F also helps.

List of medications

African/Malawi Bloat

Symptoms: loss of appetite, swelling, difficulty breathing
Description: Although this disease mainly affects African cichlids, it can still occur in other fish. Additionally,if not treated soon, enough, the affected fish may quickly become uncurable. The first sign of Malawi bloat is loss of appetite. If cught in the early stages, this disease is 100% treatable, but of course prevention is key.


Chilondonella Symptoms: color loss, gill damage, frayed fins
Description: Like many other protozoan diseases, the fish will develop slime that covers their body. When the slime reaches the gills, the gill becomes damaged. The fish will try to rub off the slime.

Costia (Ichthyobodo)

Symptoms: Cloudy/milky skin
Description: This is an extremely rare protozoan disease that affects the fish's scales. It is also a secondary disease meaning it is triggered when the fish is already sick and/or stressed.

Glugea and Henneguya

Glugea and Henneguya Symptoms: large white cysts on body
Description: Fish with this disease form cysts on their bodies. They often swell and eventually die. There is no known cure but this disease is extremely rare.

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