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Jack Dempsey
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Do you guys love Oscar!
I love them so you will love them as well
So here is the thread on how to properly care for your loved ones


Overview

Oscar fish belongs to cichlid family and are known by scientific name Astronotus ocellatus.

They thrive best in their natural habitat which is located throughout Amazon River basin in South America. When you plan to cultivate them, you should be aware of all facts and information in advance.

What Is An Oscar Fish
They belong to cichlid family and is well known by many common names like tiger Oscar, marble cichlid and velvet cichlid.

It resides in its natural wild habitat in South America and has also been introduced to many parts of the world like China, the United States and Australia. It is one of the famous aquarium fish in the U.S.


History
These species were originally discovered by Louis Agassiz as Lobotes ocellatus in 1831. It was a mistake as the species was marine and later on more work was done and finally the genus Astronotus name was assigned to the species.

This species has many numbers of synonyms such as Acara compressus, Astronotus ocellatus zebra, Acara hyposticta, and Astronotus orbiculatus.


Life Span
The life span of Oscar fish aregenerally 10 – 13 years.

Oscar Fish Care
Taking care of them are of utmost important, if you are a fish lover. The aquarium should be filled with clean and warm water , for their longevity.

The temperature of water tank should be maintained between 23 to 27 degrees Celcius or 77 degrees Fafrenheit. A aquarium heater with temperature controller will ensure the stability in temperature inside the tank.

The minimum tank size should be a tank that can hold at least 152 litres or 50 gallons of water. It is necessary to have excessive filtration of the recycled water in the whole aquarium since they are messy species and requires regular cleaning of its environment.

The overstayed water become Toxic water and affects health of fish badly. A filter system at the inlet or water cycle are the best solution to keep them healthy

Difference Between Male And Female Oscar Fish
Color differences can’t differentiate males from female. It is the shape of genital papillae that clearly differentiates male from female.

When Oscars are large enough to be between 4 and 5 inches in length, you can examine them by observing genital papillae. In case of males, this forms into a fine point and is blunt and wide-mouthed in case of females.

Colors
In the wild natural habitat, Oscars have dark-colored bodies with yellow colored ringed spots known as ocelli and are located on caudal peduncle and dorsal fin.

They can change their colors, this unique feature protects them being from being eaten while they feed in their territory. Juveniles of this species show many different colors as compared to adults like they have strips of orange and white bands.

Teeth
Oscars do have teeth that are placed at back in the mouths. Their teeth are not as sharp as a razor but are shocking enough to get chomped by. They have teeth not only in jaws, but they also do have set of pharyngeal teeth in the throat as well.

Oscar jaw teeth are very small and are only used for grasping whereas teeth in the throat processes and manipulates prey. If you consider type and arrangement of teeth then pharyngeal

teeth in the throat are arranged in such a way that they are considered as one of important character of Oscar fish helpful in systematic process in deciphering evolution of cichlids and significant study has already been published.
 

Stanzzzz7

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The minimum tank size should be a tank that can hold at least 152 litres or 50 gallons of water. I
I don't agree with this.
100 gallons minimum would be a much better recommendation.
Oscars have been known to reach 17 inches.They are also intelligent and inquisitive fish.An Oscar kept in a 50 gallon tank for life would be deprived of exercise, stimulation and a stable environment.
Anyone new to the hobby reading this please consider the welfare of the animal.
Can a fish that big be happy in 50 gallons?
If course it can't.
If you want an Oscar but can't get a tank bigger than a 75, choose a smaller species.
 

MrsE88

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Mar 9, 2017
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I when I got my 75 it was intended for an oscar. I didn't realize how big their body mass was.
I saw one that was easily 12in+ at a pet store last week. I'm really glad I didn't stick with having one. They are massive. It would hardly have any room to move in a 75. I can't imagine one cramped into a 50:(
 

Hendre

Bawitius
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The smaller commercially bred (or inbred) types can be okay in a 75 since they don't top as large due to genetics but I agree on 100 gallons :)
 

BIG-G

Goliath Tigerfish
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Dec 12, 2005
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Longfin oscar keeper here! Very messy eaters! Glad you emphasise the importance of ample filtration.
I love oscars too but you can keep twice as many fish with the same filtration it takes to keep these guys! Lol messiest fish you can have.
 
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Lsey81

Plecostomus
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I love oscars too but you can keep twice as many fish with the same filtration it takes to keep these guys! Lol messiest fish you can have.
Isn't that the truth! My arowana is a neat freak in comparison to my oscar and she's a savage during feeding time...I actually don't even have to feed the minnows that reside in the Oscar tank anymore...they just follow him and live off his mess!
 
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axs377

Polypterus
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Dec 17, 2006
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I think 75 gallons per oscar would be fine, but not a 75 due to the dimensions. So in other words a 150 for a breeding pair would be fine. The biggest issue is they are absolute pigs and make very messy tanks. I'm not sure they reach 17" as I've never seen any specimen near that size in pictures (with a tape nearby) or in person.... Though I can attest they are capable of 14"
 
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