Fish comparison
Cockatoo Dwarf Cichlid vs Discus
How the Cockatoo Dwarf Cichlid and Discus compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Cockatoo Dwarf Cichlid vs Discus
The Cockatoo Dwarf Cichlid and the Discus come up together a lot when people are choosing a fish, and they are close enough to weigh side by side. Both are happy somewhere around 28 to 28 °C and pH 5.5 to 7, so a single tank can suit either one. The Cockatoo Dwarf Cichlid is the more forgiving of the two, which matters if this is an early tank, while the Discus rewards a bit more attention. If tank space is tight, the Cockatoo Dwarf Cichlid needs less room to feel settled; give the Discus the nod when you have the litres to spare.
Group compatibility overview
Good fit
Workable as-is, only minor advisories to plan around.
1 warning · 3 notes
Temperature
- Cockatoo Dwarf Cichlid24–28 °C
- Discus28–31 °C
pH
- Cockatoo Dwarf Cichlid5.5–7.5
- Discus5.5–7
Hardness
- Cockatoo Dwarf Cichlid2–15 dGH
- Discus1–8 dGH
What to plan for
- Tight temperature windowThe overlap is only 28–28 °C. Heater stability matters more than usual; consider an external controller.
- Discus schools, stock at least 6You've planned for 1 discus. Discus need a group of at least 6 to feel safe and shoal naturally, below that they're stressed and lose colour. Dial up the count, or remove the species.
- Demanding species presentDiscus are difficulty 4+. Stable parameters and weekly maintenance are non-negotiable.
- 67% of your fish swim in the midHeavy concentration in a single zone. Spreading stocking across all three levels makes the tank read fuller for the same bioload.
Full attributes
Every parameter, side by side| Parameter |  FishCockatoo Dwarf CichlidApistogramma cacatuoides |  FishDiscusSymphysodon aequifasciatus |
|---|---|---|
| Category | Fish | Fish |
| Origin | Upper Amazon basin, Peru & Brazil | Amazon basin |
| Family | Cichlidae | Cichlidae |
| Temperature | 24–28 °C | 28–31 °C |
| pH | 5.5–7.5 | 5.5–7.0 |
| Hardness (dGH) | 2–15 | 1–8 |
| Flow rate | Low | Low |
| Min tank | 75 L (pair) | 300 L |
| Adult size | 6–8 cm (male), 4–5 cm (female) | 15–20 cm |
| Difficulty | 3 / 5 | 4 / 5 |
| Lifespan | 3–5 yrs | 10–15 yrs |
| Diet | Carnivore | Carnivore |
| Water column | Mid to Bottom | Mid |
| Schooling | Harem (1 male, 2–3 females) | Yes |
| Plant safe | Yes | Yes |
| Shrimp safe | Risky with dwarf shrimp | Adults only |
Frequently asked questions
Direct answers to the questions search engines and AI assistants surface most often about this species.
Can you keep Cockatoo Dwarf Cichlid and Discus together?
Yes. Their temperature and pH ranges overlap around 28 to 28 °C and pH 5.5 to 7, so one set of water conditions keeps both comfortable. Match group sizes and cover the usual planted-tank basics and they share a tank fine.
Which is easier to keep, the Cockatoo Dwarf Cichlid or the Discus?
The Cockatoo Dwarf Cichlid is the easier of the two, closer to middle-of-the-road, while the Discus leans demanding.
Do Cockatoo Dwarf Cichlid and Discus need the same water?
Close to it. Aim for 28 to 28 °C and pH 5.5 to 7 and you're in the shared sweet spot for both. Full ranges are in the table above.
What's the main difference between the Cockatoo Dwarf Cichlid and the Discus?
Temperament is the big one. The Cockatoo Dwarf Cichlid is territorial when breeding and the Discus is peaceful, which changes who you can house them with.