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Slender Lionhead (Steatocranus tinanti) Care Guide

Steatocranus tinanti is a slender, elongated rheophilic cichlid from the Congo rapids, a bottom-dwelling cave spawner needing strong, oxygenated current.

Compiled by Aquairi from published sources · Published · Updated

Overview

Steatocranus tinanti is a more elongated and slender member of the genus than the Buffalohead, with a smaller forehead hump. It is a rheophilic cichlid of the Congo rapids that perches and hops along the substrate, an adaptation linked to a reduced swim bladder typical of the genus.

Taxonomy

  • Family: Cichlidae
  • Genus: Steatocranus
  • Scientific name: Steatocranus tinanti

Habitat

According to FishBase, the species inhabits Pool Malebo (Stanley Pool) and the lower Congo River in the Republic of Congo and the Democratic Republic of the Congo. It is a demersal, rheophilic freshwater fish of fast-flowing, well-oxygenated rocky stretches.

Tank requirements

  • Minimum tank volume: 150 L
  • Temperature: 24-28 °C (75-82 °F)
  • pH: 6.0-7.5
  • GH: 2-12 °dGH
  • Water flow: high, well oxygenated
  • Lifespan: 8-12 years

Diet

The species is an omnivore with a FishBase trophic level of about 3.3. In the aquarium it accepts varied prepared foods alongside small frozen invertebrates, fed twice daily.

Compatibility

This semi-aggressive bottom-dweller suits a Congo rapids setup with strong flow and abundant rockwork. Suitable companions include Congo tetras and Synodontis nigriventris. It should be kept away from Rift Lake mbuna and hard-water cichlids, and it is not safe with delicate plants.

Breeding

Steatocranus tinanti is a pair-bonding cave spawner. FishBase reports that the female lays up to about 100 eggs in the male's cave, and both parents care for the young.

Conservation status

IUCN Red List: Least Concern (assessed 16 February 2009).

Steatocranus tinanti Breeding Guide

Overview

Steatocranus tinanti, the slender lionhead, is a rheophilic cichlid from Pool Malebo and the lower Congo River. FishBase records a maximum standard length of 6.3 cm, a carnivorous trophic level around 3.3, and classifies the species as a pair-bonding cave spawner. It is more elongated and slender than the related buffalohead S. casuarius.

Sexing

Males are generally larger; the species shows the genus tendency toward a head profile that is more developed in males, though the bump is smaller than in S. casuarius. A bonded pair claims a cave together, and confirming sex is most reliable once a pair forms and spawns.

Conditioning

As a carnivore at trophic level around 3.3, the species is conditioned on small live and frozen foods. Strong, well-oxygenated current that reproduces its rapids habitat helps keep adults in good condition for spawning.

Breeding Setup

Provide a rocky, high-flow tank with caves. FishBase lists tolerances of pH 6.0-8.0, hardness 5-19 dH and 25-27 C. As with other Steatocranus, oxygen-rich moving water and secure caves are central to a successful breeding setup.

Spawning Behavior & Trigger

The female lays up to about 100 eggs in the male's cave, after which both parents care for the young. A securely bonded pair with a suitable cave and strong oxygenated flow are the main triggers for spawning.

Egg & Fry Care

Care is biparental: FishBase states that both parents take care of their young after the female lays the eggs in the male's cave. As in the genus, the pair guards a territory around the cave until the fry are well developed, and the in-cave clutch is sheltered from the open current of the rapids habitat.

Common Challenges

The key requirements are recreating the strong, oxygenated current of the Congo rapids and offering suitable caves for the cave-spawning pair. Like other rheophilic Steatocranus, the fish is a bottom-oriented perching species, so a rocky high-flow layout is essential. As the species comes from Pool Malebo and the lower Congo, stable warm water within the listed 25-27 C range supports a settled pair through the breeding cycle.

Sources

  1. FishBase
  2. Wikipedia (CC BY-SA 4.0) - Steatocranus casuarius

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