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Cichlids
/ Africa / Lake Malawi / Mbuna / Zebra Cichlid
Zebra Mbuna, Zebra Cichlid, Cobalt Blue Cichlid,
Zebra Malawi Cichlid, Nyasa Blue Cichlid
Pseudotropheus / Metriaclima zebra | Pictures
Synonyms: Tilapia
zebra
Physical description: The Zebra Cichlid has a "typical" mbuna shape.
The coloring depends on the geographical
population and mood of the fish.
The most common color variety has a pale blue body with seven to eight, dark blue or black,
vertical bands.
All flanks are pale blue.
Another variety or "mood coloration" is simply pale blue
in color.
Albino and white variations are very common, as is a "Red" or "Tangerine" form, and several blotched
"OB" varieties.
Size/Length: Males to 6" (15 cm), females to 5" (13 cm)
Similar species: Eduard's Mbuna (
P. socolofi), Golden Tropheus (
P. tropheus), and other
Pseudotropheus
species.
Habitat: Eastern Africa; rocky shores of Lake Malawi
S: bottom, middle
Aquarium: 36" (91 cm) or 35 gallons (132 L) is sufficient only for specimen measuring
up to 3.5" (9 cm).
This territorial fish requires a minimum tank size of 48" (122 cm) or 55 gallons (209 L)
as an adult.
Arrange the tank as one would for other Lake Malawi Mbunas.
Water chemistry: pH 7.2-9.0 (8.1), 12-25 dH (16), 72-82°F (22-28°C)
Social behavior: The Zebra Mbuna is an aggressive fish towards similar and dissimilar species.
Tensions
between fish are reduced when the Zebra Mbuna is kept in a large tank will many hiding places, and combined with
different-looking species and morphs.
Keep one male with several females.
Females have a tendency to school.
Males
establish large territories which are defended with strength.
Suggested companions: Small Haplochromines, mbunas,
Synodontis, Aulonocara
FOOD: Algae; flake; live; snails, bloodworms, mosquito larvae, microorganisms, crustaceans,
snails, Tubifex
; chopped meat; pellets; tablets; plant matter; vegetables; peas, lettuce, spinach; fruit.
Sexual differences: Males have stronger and more obvious egg-spots, and will develop a hump on the forehead
with age.
Breeding techniques: Use water with a temperature from 77-82°F (25-28°C), a pH from 8.0-8.8, and
a hardness from 10-16 dH.
The male is polygamous, so use several females.
As many as 60 eggs are laid and fertilized
via the dummy-egg method.
The female mouth broods the eggs for 20-25 days.
The female continues her cave for 8-10
days after the fry are free-swimming.
The young can be fed
Artemia,
Cyclops, Daphnia and dry foods.
Breeding potential: 6.
Breeding is fairly easy.
Remarks:
Several populations that greatly vary in color and pattern are available.
In addition to the many color varieties,
there are several species that are sold as
P. zebra.
Many of these have not been scientifically
described but are known as Pseudotropheus
species aff zebra.
The zebra will change colors depending
on its mood.
Difficulty of care: 5.
An aggressive fish that should be combined with other robust mbunas.
Recent articles about fish
Overfishing may hurt Amazon forest trees
(2/5/2008) Overfishing is reducing the effectiveness of seed dispersal by fish in the Brazilian Pantanal, reports Nature. The research suggests that fishing practices can affect forest health.
Scientists find fish that literally lives in trees
(10/17/2007) Scientists have found a fish that literally lives in trees, according to research published in The American Naturalist and highlighted in New Scientist Magazine.
Piranhas originated when Amazon was flooded by seawater
(12/4/2007) South America's piranha family of fish -- notorious as eaters of flesh -- can be traced back to a single ancestor which dispersed when the Amazon was flooded by seawater some five million years ago, report researchers from the Institut de Recherche Pour le Developpement (IRD). Today piranhas are exclusively freshwater fish found from the Orinoco River basin in Venezuela to the Parana in Argentina.
How to save the world's oceans from overfishing
(7/8/2007) Global fishing stocks are in trouble. After expanding from 18 millions tons in 1950 to around 94 million tons in 2000, annual world fish catch has leveled off and may even be declining. Scientists estimate that the number of large predatory fish in the oceans has fallen by 90 percent since the 1950s, while about one-quarter of the world's fisheries are overexploited, depleted, or recovering from depletion. Despite these dire trends, the situation is changing. Today some of the world's largest environmental groups are focused on addressing the health of marine life and oceans, while sustainable fisheries management is at the top of the agenda for intergovenmental bodies. At the forefront of these efforts is Mike Sutton, director of the Monterey Bay Aquarium's conservation program: the Center for the Future of the Oceans. The aquarium, which has long been recognized as one of the world's most important marine research facilities, is pioneering new strategies for protecting the planet's oceans. Sutton says the approach has four parts: establishing new marine protected areas, pushing for ocean policy reform, promoting sustainable seafood, and protecting wildlife and marine ecosystems.
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