Fish comparison
Cockatoo Dwarf Cichlid vs Common Pleco
How the Cockatoo Dwarf Cichlid and Common Pleco compare on care, size, water and temperament, and which fish suits your tank.
By Mike ElmiraUpdated
TL;DR, Cockatoo Dwarf Cichlid vs Common Pleco
The Cockatoo Dwarf Cichlid and the Common Pleco 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 Common Pleco 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 Common Pleco 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
- Common Pleco22–28 °C
pH
- Cockatoo Dwarf Cichlid5.5–7.5
- Common Pleco6.5–8
Hardness
- Cockatoo Dwarf Cichlid2–15 dGH
- Common Pleco5–20 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 |  FishCommon PlecoPterygoplichthys pardalis |
|---|---|---|
| Category | Fish | Fish |
| Origin | Upper Amazon basin, Peru & Brazil | Amazon basin |
| Family | Cichlidae | Loricariidae |
| Temperature | 24–28 °C | 22–28 °C |
| pH | 5.5–7.5 | 6.5–8.0 |
| Hardness (dGH) | 2–15 | 5–20 |
| Flow rate | Low | Medium to high |
| Min tank | 75 L (pair) | 450 L |
| Adult size | 6–8 cm (male), 4–5 cm (female) | 40–50 cm |
| Difficulty | 3 / 5 | 2 / 5 |
| Lifespan | 3–5 yrs | 15–20 yrs |
| Diet | Carnivore | Omnivore (vegetarian-leaning) |
| Water column | Mid to Bottom | Bottom |
| Schooling | Harem (1 male, 2–3 females) | No |
| Plant safe | Yes | No (uproots and rasps soft plants) |
| 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 Common Pleco 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 Common Pleco?
The Common Pleco 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 Common Pleco 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 Common Pleco?
Space. The Cockatoo Dwarf Cichlid wants about 75 litres minimum and the Common Pleco around 450, so tank size can settle it.