Paradise fish (Macropodus opercularis) are a freshwater species belonging to the Osphronemidae family. They are a type of gourami so they are also known as paradise gourami. Behavior can vary between individuals, but they’re relatively social and active animals. Unlike most other gourami, the paradise variety is particularly aggressive.

They’re native to Asia, ranging across Pakistan, India, Taiwan and upwards towards Korea. Here you can find them in most bodies of freshwater. As fish that swim in the upper levels of the tank, the type of substrate you use isn’t that important. A sandy substrate would most closely resemble their natural habitat. A planted aquarium is highly recommended to provide good hiding space. 

Paradise fish need at least a 20 gallons tank. If you are keeping a small group you will need a 30 gallon tank.You can keep these fish in groups, but you need to be able to sex them. Males will fight so only keep one per tank, the rest will have to be females.

As omnivores, paradise fish will eat lots of different types of foods. Live and frozen foods are a good way to introduce protein into their diet. Things like brine shrimp, mosquito larvae, and bloodworms will be happily accepted. Algae wafers and green vegetables are fine. You can even make your own homemade foods.

Most of these diseases can be avoided by keeping the water conditions optimal, carrying out regular water changes and ensuring the fish aren’t stressed.