Marlier's julie
Julidochromis marlieri
Also known as Chequered julie
Care at a glance
- Temperature
- 73–81°F (23–27°C)
- pH
- 7.8–9.0
- Adult size
- 5.9 in (15 cm)
- Minimum tank
- 29 gal (110 L)
- Temperament
- Mostly peaceful
- Social behavior
- Social
- Swim level
- Middle
- Difficulty
- Medium
- Breeding
- Hard
- Rarity
- Rare
- Origin
- Lake Tanganyika
- Family
- Cichlidae
Overview
This cichlid forms a bonded pair and defends its chosen cave hard, so give it at least 110 liters with dense rockwork and clear territory edges. It feeds on small invertebrates and biofilm in the wild. In the tank offer quality cichlid pellets with frozen or live brine shrimp. It can be aggressive toward its own kind and similar shapes, so plan tankmates carefully and keep everything on the same hard, alkaline water.
In the wild
Marlier's julie lives along the rocky shores of Lake Tanganyika, sticking close to caves and crevices several meters down. It needs that structure to feel secure and to breed, so build a tank with stacked rock that creates plenty of caves and tight gaps. Keep the water hard and alkaline, pH 7.8 to 9, with temperatures in the mid 20s C.
Good to know
Julidochromis marlieri is a cichlid that grows to about 15 cm. The elongated body carries a grid of black-and-white markings that break up its outline against the rock. It is a cave-spawning substrate breeder that lays eggs on the ceiling or wall of a crevice, not a mouthbrooder. Wild stocks are considered stable, with collection and habitat change as local pressures.
Did you know
Pairs often stay together long-term and raise fry as a team, letting successive batches share the same territory. A pair will quietly tolerate well-grown young nearby, so an established cave can end up holding a small family group rather than just the two adults.
Where to buy
Some links may not be the exact species or variety.
…or ask your local fish store.
Appears in
Keeping Marlier's julie?
Track water tests, reminders and stocking fit.
Related species

Brown Julie
Julidochromis dickfeldi4.3 in (11 cm)20 gal (75 L)73–81°F (23–27°C)
Golden Julie
Julidochromis ornatus3.1 in (8 cm)18 gal (70 L)73–81°F (23–27°C)
Convict julie
Julidochromis regani5.1 in (13 cm)29 gal (110 L)75–81°F (24–27°C)
Masked julie
Julidochromis transcriptus2.8 in (7 cm)20 gal (75 L)75–81°F (24–27°C)
Azureus
Copadichromis azureus5.9 in (15 cm)79 gal (300 L)77–82°F (25–28°C)
Blue acara
Andinoacara pulcher5.9 in (15 cm)42 gal (160 L)72–82°F (22–28°C)
