Black Calvus (Altolamprologus calvus “Black”)
Quarantined specialty cichlid for carefully planned freshwater aquariums in Canada.
Black Calvus is a dark colour/locality form of Altolamprologus calvus, a laterally compressed rock-crevice specialist from Lake Tanganyika. Its high-contrast dark pattern and slow, deliberate hunting behaviour offer a very different display from active open-water African cichlids.
Why This Cichlid Stands Out
- Origin / Group: Lake Tanganyika
- Display Value: Its high-contrast dark pattern and slow, deliberate hunting behaviour offer a very different display from active open-water African cichlids.
| Species | Altolamprologus calvus |
|---|---|
| Habitat | Rock crevices in Lake Tanganyika |
| Behaviour | Slow, deliberate hunting; territorial |
| Water Conditions | Hard, alkaline water; temperature 24–28°C |
FAQ
What is the origin of the Black Calvus cichlid?
The Black Calvus cichlid originates from Lake Tanganyika in Africa, specifically from rock crevice habitats.
How does the Black Calvus differ from other African cichlids?
It has a high-contrast dark pattern and exhibits slow, deliberate hunting behaviour, unlike the more active open-water African cichlids.
Is this cichlid suitable for beginner aquarium keepers?
Please contact customer service

Donna Gray –
The Black Calvus adds a unique presence to my tank. Its dark pattern and calm movements stand out compared to other cichlids. I’ve kept it for six months and it’s very active in its crevices without being aggressive. Perfect for a more tranquil setup.
Mary Langdon –
This cichlid is a striking addition to my Lake Tanganyika-themed aquarium. It’s not flashy, but its quiet hunting style is fascinating to watch. I appreciate the quarantine process—shows care for health and safety.
Julia Avery –
I was drawn to this species for its distinct appearance. It’s adapted well to my tank’s conditions and doesn’t stress other fish. The slow movement gives a peaceful vibe to the aquarium.