HomeFreshwater aquarium fishAfrican cichlidsMasked julie Masked julie (Julidochromis transcriptus) Scientific name: Julidochromis transcriptus Matthes, 1959 The Masked julie (Julidochromis transcriptus) is a freshwater fish of the family Cichlidae that grows to about 15 cm (5.9 in). It is easy to keep and semi-aggressive, needs carefully chosen tank mates and needs a tank of at least 75 L (20 US gal), water at 23–25°C (73–77°F) and a pH of 7.4–9.0. Native range: Africa, Rocky shores of Lake Tanganyika. Masked julie care at a glanceCare levelEasyTemperamentSemi-aggressiveCommunity tankWith cautionAdult size15 cm (5.9 in)Minimum tank75 L (20 US gal)Temperature23–25°C (73–77°F)pH7.4–9.0Hardness7–20 dGH (125–357 ppm)DietOmnivore. Accepts flakes, frozen foods and live foods. BiologyRock-dwelling. Usually solitary, territorial. Feeds on microorganisms. Aquarium keeping: in pairs; minimum aquarium size 60 cm.Source: FishBase, licensed CC BY-NC 4.0. Species factsScientific nameJulidochromis transcriptusFamilyCichlidae (Cichlids)OrderPerciformes (Perch-like fish)ClassActinopterygii (Ray-finned fishes)Maximum length7.0EnvironmentFreshwater;; pH range: 8.5 - 9.2; dH range: 8 - 14 benthopelagicClimateTropicalDistributionAfrica: Endemic to the northwest shore of Lake Tanganyika, between Luhanga and Makabola (Democratic Republic of the Congo).Conservation status (IUCN)Least Concern (LC)Threat to humansHarmlessUsesAquarium: commercialResilienceHigh, minimum population doubling time less than 15 months (tm More african cichlidsLamprologus callipterusJulidochromis marlieriJulidochromis dickfeldiHemichromis lifaliliLamprologus ocellatusHumphead cichlidCyphotilapia frontosaSee all african cichlids SourcesTaxonomy, distribution and biology data: FishBase (Froese, R. and D. Pauly, eds.), licensed CC BY-NC 4.0. Aquarium care parameters compiled, checked and converted to metric and imperial units by Guppies.za.net.Last updated 28 September 2026