Black Convict Cichlid
The Black Convict Cichlid is a striking and hardy freshwater fish native to South America. Known for its bold black coloration and aggressive behavior, it is a popular choice for experienced aquarium keepers.
Key Features
- Adult size: 6 to 8 inches
- Lifespan: 8 to 10 years
- Water temperature: 75°F to 82°F
- Water pH: 6.0 to 7.8
- Water hardness: 3 to 8 dGH
Specifications
| Feature | Value |
|---|---|
| Species | Amphibolichthys rhodostomus |
| Size (adult) | 6-8 inches |
| Lifespan | 8-10 years |
| Temperature | 75–82°F |
| pH Range | 6.0–7.8 |
| Hardness | 3–8 dGH |
FAQ
What is the ideal tank size for a Black Convict Cichlid?
A minimum of 55 gallons is recommended to provide adequate space for this active and territorial fish.
Are Black Convict Cichlids compatible with other fish?
They are not suitable for community tanks with smaller or peaceful species due to their aggressive nature. Best kept with similarly sized, robust fish.
How often should I feed a Black Convict Cichlid?
Feed once or twice daily, offering only as much food as can be consumed within 2–3 minutes.

Isaac Hart –
This fish is very active and adds a lot of visual interest to my tank. I’ve had it for six months and it’s still healthy and vibrant. Just make sure the tank is large enough and avoid keeping it with small fish.
Richard Smith –
The Black Convict Cichlid is a strong and bold fish. It’s not for beginners, but once you get the setup right, it’s a great addition to a mature aquarium.
Felicity Wright –
It’s aggressive and takes up a lot of space. I had to remove a smaller fish that was too timid. Still, it’s a fascinating species to watch.