Masked Julie (Julidochromis transcriptus)

Family: Cichlidae

Masked Julie — a Cichlidae from Lake Tanganyika, Africa, feisty around breeding time; plan territory in advance. Reaches 5.2–7.7 cm; pairs or harems in tanks with broken sightlines. 22–25 °C.

Care parameters

Water temperature
22–25 °C
pH
8.5–9.2
GH hardness
8–14 dGH
Adult length
5.2–7.7 cm
Minimum tank
71 L
Water layer
Bottom-dwelling
Difficulty
Moderate
Temperament
Feisty around breeding time; plan territory in advance
Origin
Lake Tanganyika, Africa

Species overview

Julidochromis transcriptus, a member of the family Cichlidae, comes from Lake Tanganyika, Africa, where it inhabits lakes and slow rivers with structure. Feisty around breeding time; plan territory in advance and hearty eater; feed pellets with regular vegetable matter, it grows to 5.2–7.7 cm and adapts well to a properly set-up aquarium in the 22–25 °C range. Other Julidochromis species in our database include Julidochromis marlieri.

Native biotope

Habitat
Lakes and slow rivers with structure
Flow
Still to gentle current
Dissolved O₂
Moderate

Aquascape & hardware

Substrate
Sand with rock piles
Hardscape
Stones, caves and broken lines of sight
Plants
Hardy species that tolerate digging

Temperament, diet & tankmates

Schooling
Pairs or harems in tanks with broken sightlines
Diet
Hearty eater; feed pellets with regular vegetable matter
Recommended tankmates
  • Other cichlids of similar size and temperament — Balance aggression across the tank
Avoid keeping with
  • Delicate planted-tank species — Uprooted and outcompeted

Breeding & notes

Sexual dimorphism
Often striking; males larger and brighter
Breeding method
Both parents guard eggs and fry for weeks

Frequently asked questions

Is Masked Julie easy to keep?

Difficulty: moderate. Feisty around breeding time; plan territory in advance. Pairs or harems in tanks with broken sightlines.

What temperature and water chemistry does Masked Julie need?

Hold 22–25 °C and keep it stable — 22–25 °C recorded range. Heater required for stable tropical warmth.

How big does Masked Julie get, and what tank size?

Full size is 5.2–7.7 cm. Minimum tank: 71 L, with open swimming space along its bottom-dwelling habits.

What does Masked Julie eat?

Hearty eater; feed pellets with regular vegetable matter. Feed two small meals a day rather than one large one.

Can Masked Julie live with other fish?

Feisty around breeding time; plan territory in advance. Recommended tankmates: Other cichlids of similar size and temperament — Balance aggression across the tank. Avoid Delicate planted-tank species — Uprooted and outcompeted.

Where does Masked Julie come from?

Comes from Lake Tanganyika, Africa: lakes and slow rivers with structure. Expect still to gentle current and moderate.

Does Masked Julie jump?

Not a noted jumper — a standard cover still keeps dust and spray in.

How does Masked Julie breed?

In the aquarium: both parents guard eggs and fry for weeks. Often striking; males larger and brighter.