How To Take Care Of A Oscar Fish. A minimum fish tank size of 40 gallons about 152 liters is recommended if you are keeping an Oscar. You can also increase the temperature of the water especially when treating your Oscar fish.
They also have some additional requirements because of their powerful size and strength. It is recommended water changes occur at least twice a week to siphon out excess waste. Oscars can grow to sixteen inches which is a huge fish for a home aquarium.
The minimum tank size for a single Oscar fish should be 40 gallons.
Ensuring you have the proper tank size should always be step one for trying to provide great care for your Oscar fish. What Should I Feed Oscar Fish A proper diet increases their life expectancy and strengthens their immune system. They then take the fish home and put it in their own aquarium where nitrate levels are very high. Perform water changes at least once a week ideally twice.