Aquarium Planner

A beginner-friendly fish guide

Oscar

Oscar

Astronotus ocellatus

Aggressive temperament; social needs depend on the species and setup. Check the planner before choosing tank mates.

Beginner level 2/5Extra care

A good environment

Recommended temperature
24 ~ 28°C
Recommended pH
6.0 ~ 7.5
Preferred water hardness
Medium hardness
Minimum aquarium
300L or more

At a glance

Group
Cichlids
Average adult size
about 35 cm (large)
Minimum tank length
about 120 cm
Activity level
Moderate
Waste level
Very high
Lid recommended
Not required
Mature tank preferred
Not required

Temperament & group size

Aggressive temperament; Social needs depend on the species and setup.

Usually swims in the middle.

Tank-mate notes

Adult shrimp may be attacked; take care with shrimp tank mates.

Baby shrimp may be eaten. A separate breeding tank is safer.

Check each combination carefully, especially when size or temperament differs.

Add Oscar to my aquarium

오스카 키울 때 필요한 용품

이 포스팅은 쿠팡 파트너스 활동의 일환으로, 이에 따른 일정액의 수수료를 제공받습니다.

Frequently asked questions

How big does Oscar get, and what tank size does it need?

Adults average about 35 cm, a large species. The planner recommends an aquarium of at least 300 L and about 120 cm long.

What water temperature and pH does Oscar need?

The planner range is 24~28°C and pH 6.0~7.5, with medium hardness.

How many Oscar should be kept together?

Social needs depend on the species and setup. Temperament is aggressive.

Can Oscar live with shrimp?

Adult shrimp: not recommended. Baby shrimp: not recommended.

Is Oscar a good fish for beginners?

Beginner level 2/5. This species carries an extra caution flag. Activity: moderate; waste: very high.