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Marlier's Julie (Julidochromis marlieri) - hero view — representative image

Julidochromis marlieri

Marlier's Julie (Julidochromis marlieri)

Moderate Care
Semi-Aggressive
£8.99
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Live arrival guaranteed. Full refund or replacement if they don’t arrive healthy. Packed in oxygenated bags with insulation and heat packs when needed.
£19.95 tracked delivery — half price (£9.98) from £100.00, free from £200.00. One delivery charge however many fish you add — everything travels together with a licensed live-animal courier.
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A Lake Tanganyika rock-dwelling Julie cichlid for hard alkaline aquariums with cave territories, pair behaviour and secure rockwork.

Care at a Glance

Scientific Name
Julidochromis marlieri
Max Adult Size
up to 13 cm
Lifespan
8 years
Care Level
Moderate
Temperament
Semi-aggressive
Temperature
24–27°C
pH Range
7.5–9
Hardness
10–20 dGH
Minimum Tank
150L
Diet
Omnivore; cichlid pellets, frozen foods

Adult size is the maximum length this species reaches at full maturity (scientific sources). The livestock you receive will be younger and smaller — pick a size variant above for the actual shipping size. Product-photo provenance and any image-specific limitations are stated on the listing.

Source-labelled Bolivian ram swimming above aquarium gravel
Full Care Guide

Cichlids: Types, Care & Tank Planning

Cichlids are a family of roughly 1,800 accepted species, not one care type. Before buying, identify the exact species and source, then compare adult measurement, usable tank dimensions, social system, territory, tested water, diet and an exit plan. No family-wide minimum tank, water range or tank-mate list is safe.

14 min readRead guide

Water Parameters

Maintain these water conditions for optimal health and vibrant colors

Temperature
24–27°C
24°CIdeal27°C
pH Level
7.5–9
7.5Ideal9
Water Hardness
10–20 dGH
10 dGHIdeal20 dGH

Marlier's Julie overview

Marlier's Julie (Julidochromis marlieri) is a Lake Tanganyika rock cichlid, also known as Spotted Julie or Chequered Julie.

Quick facts

Adult size Up to about 13 cm total length
Minimum aquarium 150 litres or more for a pair and rock territories
Water 22-25°C, pH 7.5-9.0, hard alkaline water
Diet Omnivore; quality cichlid pellets and frozen foods
Temperament Territorial around caves and breeding sites

Care notes

Build stable rockwork with caves, crevices and broken sight lines. Pairs can be rewarding, but they need space to claim territory and should not be crowded with delicate community fish.

Ordering from Tropical Fish Co

Livestock is packed for delivery by a licensed live-animal courier and covered by our Live Arrival Guarantee when the policy conditions are followed.

Species facts

Published records for Julidochromis marlieri — useful when planning the aquarium around the adult fish rather than the size supplied. The wild range below is what FishBase lists; the care range on this listing (24–27 °C) is what we keep the fish at.

  • Maximum recorded length: 13 cm (FishBase)
  • Wild water temperature: 22–25 °C (FishBase)
  • Wild pH: 7.5–9 (FishBase)
  • Environment: Freshwater, demersal (FishBase)
  • IUCN Red List: Least Concern (FishBase)

Keeping notes

Hardness 10–20 dGH. Typical lifespan around 8 years with stable water. Swims mainly in the bottom part of the aquarium. Recommended stocking: Pair.

Sources

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