No freshwater fish must be kept in freshwater and saltwater fish must be kept in saltwater. The oscar Astronotus ocellatus is a species of fish from the cichlid family known under a variety of common names including tiger oscar velvet cichlid and marble cichlid. ocellatus specimens are often found for sale as a food fish in the local markets.

The one exception that i know of in nature is salmon which migrate from where they were born

Oscar fish In tropical south america where the species naturally resides a. The fish has been introduced to other areas including india china The oscar fish is one of the most intriguing tropical freshwater fish in the entire hobby. Here is everything you need to know to start raising oscars in your home aquarium including their tank conditions their preferred diet and all the information you need to breed them successfully. The fish most frequently referred to as the oscar is astronotus ocellatus.

It is a freshwater cichlid. Oscars are predators that grow very large and eat anything in quantity. If it fits into the Oscars are a large freshwater cichlid they grow 12-18 inches in there first 2 years and are very hardy they are a south american cichlid they are carnivorous and beg for food they need a tank of absolute least 30g and for it to be happy a 55g is required 2 oscars need 75g and 3 oscars need 100g 4 needs 130g.

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