Description
The Neolamprologus cylindricus is a striking, torpedo-shaped cichlid endemic to the rocky, sediment-rich shorelines of Lake Tanganyika. Known for its bold vertical striping and vibrant blue highlights, this species is a territorial shell- and rock-dweller, making it a standout in Tanganyikan biotope aquariums. With its aggressive defence of breeding sites and intricate social behaviours, N. cylindricus is well-suited to experienced hobbyists who can provide a structured environment and suitable tank mates.
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Features of Neolamprologus cylindricus
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Grows to an average adult size of 10–12 cm
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Elongated, cylindrical body shape with vertical black bars over a silvery-white to blue body
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Males are slightly larger and may show more intense colouration
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Territorial, particularly during breeding periods
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Intelligent and highly interactive with complex social behaviours
The Best Aquarium Size for Neolamprologus cylindricus
A minimum tank size of 120 litres is required for a pair or small group. For multiple individuals or mixed Tanganyikan setups, 200+ litres is recommended to provide enough space for territories and reduce aggression. A long tank layout with rocky zones and open swimming space is ideal.
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Tank Mate Compatibility for Neolamprologus cylindricus
Due to its territorial nature, tank mates should be chosen carefully. Compatible species include other robust Tanganyikan cichlids with differing shapes or ecological niches. Examples: Julidochromis marlieri, Altolamprologus calvus, Cyprichromis leptosoma (upper water column), Lamprologus ocellatus, and Tropheus duboisi (in large, advanced tanks). Avoid overly aggressive species or those that compete for the same rocky crevices.
Diet for Neolamprologus cylindricus
This species is carnivorous and thrives on a protein-rich diet. Feed a mix of high-quality cichlid pellets, frozen or live foods such as brine shrimp, mysis shrimp, and bloodworms. Avoid feeding large quantities of flake food or plant-based items, which do not meet their nutritional needs.
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Aquarium Setup for Neolamprologus cylindricus
Aquarium Filtration
Powerful biological and mechanical filtration is essential. These fish require pristine water conditions with minimal nitrate build-up.
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Aquarium Plants
Plants are generally not necessary and may be uprooted. If desired, use hardy species like Anubias attached to rocks or wood.
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Aquarium Lighting
Moderate lighting is sufficient and helps display their reflective scales without stressing the fish.
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Aquarium Heating
Maintain a stable water temperature between 24°C and 27°C, in line with Lake Tanganyika’s natural environment.
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Aquarium Substrate
Use fine sand or smooth gravel. This species prefers to dig and rearrange substrate as part of their territorial behaviour.
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Aquarium Decorations
Rockwork is essential. Create a layout of stacked stones and caves to form clearly defined territories and breeding areas. Use inert rocks like slate or limestone to help buffer pH and maintain water hardness.
