Oscars will need a fairly large aquarium 55 gallons or larger is ideal. How Many Can Be Kept Per Gallon Try 55 gallons for the first Oscar then 20-30 gallons more for each additional fish.

A smaller tank will cause them stress which will make them ill or more aggressive.

Oscar fish Their size and need for territory means each fish needs lots of space. Tiger oscar is probably the most popular type of oscar fish in the aquarium hobby. This fish features dark blue to black background with orange to red patterns. These patterns look similar to that of the patterns on the body of a tiger so the name tiger oscar . Oscars have been known to grow up to 16 40cm and over 3 pounds 1.5kg - but usually 12 is their maximum size. Oscars in a 4ft aquarium will usually grow no larger than 8 . Ph 7.0 hardness 12.0. Keep your ph between about 6 and 8. Oscars will tolerate a range of conditions usually tap water will suffice. Oscar fish come from the tropics and therefore need to live in a heated aquarium.

Oscars are okay with a water temperature as low as 21 c and they can cope with temperatures of up to 30 c temporarily i should add . A good temperature for oscars all year round is 27 c. There is plenty of debate about the minimum size for an oscar tank. I believe that the smallest aquarium an oscar should be kept in is a 55 gallon 48x12x21 inches . 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. Oscar fish are known for their quite aggressive behavior towards other fish. Disk tetra disk pacu blackear pacu black band myleus black-barred myleus emperor blue hook aquarium severum heros severrum blood parrot cichlid osc Heating is also very important in oscar tank. Since oscars are tropical fish they need warm water. Therefore your oscar fish tank should have a good quality aquarium heater.

Oscars grow up to 10 inches and a 50-gallon aquarium will prove to be very small for 2 adult fish at this size. Some fish and aquarium plants don t go together. If you re thinking of adding oscars to your planted tank keep these important facts in mind. Many aquarium hobbyists love oscars because they are unique among freshwater aquarium fish species. Oscars are a type of cichlid and they grow large up to 18 inches long. Oscars are very messy fish so fish tank maintenance is paramount. Perform your weekly 10-15 water changes so that your oscar always has clean water and the waste that is not processed by the aquarium filter is removed. Your oscar needs good filtration to keep the water from becoming toxic and you need to keep the filter s well maintained.

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