Fish comparison
Cockatoo Dwarf Cichlid vs Siamese Algae Eater
How the Cockatoo Dwarf Cichlid and Siamese Algae Eater compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Cockatoo Dwarf Cichlid vs Siamese Algae Eater
The Cockatoo Dwarf Cichlid and the Siamese Algae Eater 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 24 to 28 °C and pH 6.5 to 7.5, so a single tank can suit either one. The Siamese Algae Eater is the more forgiving of the two, which matters if this is an early tank, while the Cockatoo Dwarf Cichlid rewards a bit more attention. If tank space is tight, the Cockatoo Dwarf Cichlid needs less room to feel settled; give the Siamese Algae Eater the nod when you have the litres to spare.
Group compatibility overview
Excellent fit
Every key parameter overlaps and no major conflicts surfaced.
1 note
Temperature
- Cockatoo Dwarf Cichlid24–28 °C
- Siamese Algae Eater24–28 °C
pH
- Cockatoo Dwarf Cichlid5.5–7.5
- Siamese Algae Eater6.5–7.5
Hardness
- Cockatoo Dwarf Cichlid2–15 dGH
- Siamese Algae Eater5–15 dGH
What to plan for
- 67% of your fish swim in the bottomHeavy 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 |  FishSiamese Algae EaterCrossocheilus langei |
|---|---|---|
| Category | Fish | Fish |
| Origin | Upper Amazon basin, Peru & Brazil | Mainland Southeast Asia (Thailand, Malaysia, Indonesia) |
| Family | Cichlidae | Cyprinidae |
| Temperature | 24–28 °C | 24–28 °C |
| pH | 5.5–7.5 | 6.5–7.5 |
| Hardness (dGH) | 2–15 | 5–15 |
| Flow rate | Low | Medium to High |
| Min tank | 75 L (pair) | 150 L |
| Adult size | 6–8 cm (male), 4–5 cm (female) | 12–15 cm |
| Difficulty | 3 / 5 | 2 / 5 |
| Lifespan | 3–5 yrs | 8–10 yrs |
| Diet | Carnivore | Omnivore (heavy algae grazer) |
| Water column | Mid to Bottom | Bottom (grazes everywhere) |
| Schooling | Harem (1 male, 2–3 females) | Loose group |
| Plant safe | Yes | Yes |
| Shrimp safe | Risky with dwarf shrimp | Yes (adults safe with adult shrimp) |
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 Siamese Algae Eater together?
Yes. Their temperature and pH ranges overlap around 24 to 28 °C and pH 6.5 to 7.5, 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 Siamese Algae Eater?
The Siamese Algae Eater is the easier of the two, closer to beginner-friendly, while the Cockatoo Dwarf Cichlid leans middle-of-the-road.
Do Cockatoo Dwarf Cichlid and Siamese Algae Eater need the same water?
Close to it. Aim for 24 to 28 °C and pH 6.5 to 7.5 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 Siamese Algae Eater?
Space. The Cockatoo Dwarf Cichlid wants about 75 litres minimum and the Siamese Algae Eater around 150, so tank size can settle it.