Marlier's goby cichlid

Spathodus marlieri

Also known as Giant goby cichlid

FreshwaterFish

Care at a glance

Temperature
75–81°F
24–27°C
pH
7.8–9.0
Adult size
3.9 in
10 cm
Minimum tank
42 gal
160 L
Temperament
Aggressive
Tankmates
With caution
Diet
Omnivore
Difficulty
Difficult
Breeding
Mouthbrooder · Hard
Rarity
Rare
Family
Cichlidae
Origin
Lake Tanganyika, northern basin

Overview

Marlier's goby cichlid is the largest of the Tanganyikan goby cichlids, a bottom dweller for a cobble tank with strong current. It is a fish for experienced keepers.

Did you know

Marlier's goby cichlid has little in the way of a swim bladder. Instead of cruising, it hops along the bottom among the cobbles.

Caring for the Marlier's goby cichlid

Give a pair of Marlier's goby cichlids at least 42 gal (160 L), with a floor of rounded cobbles and rock. They need brisk, oxygen-rich flow, so add strong water movement and lots of surface agitation.

Keep the water hard and alkaline, at 75 to 81°F (24 to 27°C) and a pH of 7.8 to 9.0, with powerful filtration. They graze algae and small invertebrates off the rocks. Feed vegetable-leaning foods with some frozen invertebrates.

Marlier's goby cichlid is the most short-tempered of the Tanganyikan goby cichlids. Keep a single pair and no rival gobies for it to fight with, and choose other tank mates with care. It holds a small territory among the cobbles and defends it firmly.

Dominant males grow a rounded hump on the forehead as they age. No other goby cichlid ages into a raised profile like that. It is a maternal mouthbrooder, with the female alone carrying the eggs and fry. Breeding it is demanding and rates as hard.

Good to know

Marlier's goby cichlid belongs to the family Cichlidae. It is one of the small, flat-headed goby cichlids of Lake Tanganyika.

In the wild

Spathodus marlieri holds station on wave-beaten rock in the far northern basin of Lake Tanganyika. The water there is very shallow, only a meter or two deep, and highly oxygenated.

Common questions

What size tank does a Marlier's goby cichlid need?

A Marlier's goby cichlid needs at least 42 gal (160 L). It spends most of its time in the bottom.

What temperature and pH does a Marlier's goby cichlid need?

A Marlier's goby cichlid is comfortable at 75–81°F (24–27°C) with a pH of 7.8–9.0.

What does a Marlier's goby cichlid eat?

A Marlier's goby cichlid grazes algae and small invertebrates off the rocks. Feed it vegetable-leaning foods with some frozen invertebrates.

How big does a Marlier's goby cichlid get?

An adult Marlier's goby cichlid reaches about 3.9 in (10 cm).

How can you tell a male Marlier's goby cichlid from a female?

Males that become dominant grow a rounded hump on the forehead as they age.

How does a Marlier's goby cichlid breed?

A Marlier's goby cichlid is a maternal mouthbrooder, and the female alone carries the eggs and fry. Breeding it is demanding and rates as hard.

Related species