Oscar fish are known for their quite aggressive behavior towards other fish.
Oscar fish tank mates list.
However don t get upset.
The majority of the fish that i have suggested as tank mates will require at least 50 gallons just for themselves excluding the oscar.
Unfortunately as docile as oscar fish are around humans they can be relatively aggressive when raised in a tank.
They are medium in size.
Some are aggressive and some are timid.
Keep them well fed and provide some big rocks and caves with plenty of water volume and a good size aquarium and you ll have no issues finding suitable tank mates for tiger oscars.
Dempseys are also the good tank mates for your oscar.
Opting for a larger tank can reduce some issues related to aggression try to keep a tank that is at least 75 gallons in size.
Try 55 gallons for the first oscar then 20 30 gallons more for each additional fish.
Most of the fish i am going to recommend as tank mates will require a minimum of 50 gallons just for themselves not including the oscar.
The oscar fish can be a handful to manage once you have them in your tank but if you provide them with the right conditions and tank mates then it can be much easier to handle them.
In addition oscar is a raptorial feeder that should be kept in a separate tank with its couple match or in a very large tank with large tank mates.
As a result you need to make sure you select your tank mates and the tank itself quite carefully.
Their aggressive nature can cause tank mates to live in fear assuming that they haven t already been eaten.
Oscar fish will grow to over 12 14 and need a large tank.
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Chocolate cichlids are peaceful in nature which prove them a better tank mate for your heavy oscar.
This species is not the best at making friends.
But they are compatible tank mates for your oscar.
Picking tank mates that are appropriate keep in mind that you can t put any fish in with an oscar you must pick fish that will have the capacity to live in congruity with your oscar.