Why are my fish covered in white spots?

Also, white spot disease can kill fish.

These spots are cysts that have formed over the parasite, which isn’t visible to the naked eyes. An severely affected fish may be visually lethargic and flickering or clamping its tail fins. They will also be much less active. Whitespot can quickly kill fish and spread to other fish in the tank if it is not treated.

You should also know that fish ick can affect humans. It can spread as in physical contact. However, it does not have any ill effects on people. It won't do too much outside.

What does it look like on a fish if there is ick?

Ich is a persistent and common disease in fish. It is found on the body, fins, and gills of fish in white nodules up to one millimeters, which looks like salt grains. Each white spot indicates an encysted parasite. This makes the fish less sensitive to low oxygen levels in the water.

What is the best way to treat white spots?

Aquilibrium First aid salt can be used to help fish with white spot. It reduces stress. Osmoregulation is the term used to describe how fish use energy to match their bodies salinity with the water around them.