Cichlids
By Allen Jesson
Cichlids come in all shapes and sizes and live in South America, North America, Africa and Asia. Since they
require warm conditions, they are only found south of 30 degrees North on the North American continent. Many aquarium
keepers are fond of cichlids and keep them in their tropical aquariums. Since cichlids have adapted to a wide range
of different habitats, you can almost always find cichlids that are suitable for your particular and level
of experience.
Most beginner keepers have comparatively small aquariums and can therefore be tempted to get some of the
dwarf cichlid variants for their first cichlid aquarium, but before you make such a decision you should be aware that
dwarf cichlids are more sensitive and harder to keep than most medium-sized cichlids. Choosing a sturdy, medium-sized
cichlid is therefore usually a better idea for the novice keepers, even if it means that you must purchase a
larger or keep a lower number of fishes.
The cichlids belong to a family named Cichlidae that currently contains more than 1300 described species in 105
different genera. These numbers will however most likely change in the future, since many of the waters where cichlids
can be found are far from comprehensively explored by science. We only have to take a look in the Great Rift Valley
lakes on the African continent to marvel at the abundance of endemic cichlid species that can be found in each lake.
If these lakes were to be thoroughly investigated - before pollution, over fishing, invasive species and other
environmental problems are allowed to go too far - we would probably find a wide range of new cichlid species and
even new genera.
As mentioned above, cichlid species have evolved to fit into a vast array of different ecological niches and they will
therefore display diverse characteristics. There are however a series of physical characteristics shared by all cichlid
species. The cichlids will for instance have only one single nostril - just like the damsel fishes. Unlike many other
fish groups, the cichlids are equipped with teeth in the upper and lower jaws, and even inside the throat. The cichlids
have a small intestine that leaves the body at the left side of the cichlid, instead of the right side which is the
normal anatomy for fishes.
Cichlids are appreciated by keepers all over the world and some of the most popular fishes belong to
the family Cichlidae. Oscar (Astronotus ocellatus), Jack Dempsey (Archocentrus octofasciatum), freshwater Angelfish
(Pterophyllum scalare) and the various Discus variants are just a few examples of cichlids commonly found in aquariums.
Before you purchase a cichlid, you should always find out its preferred environment, temperament, maximal size and
feeding habits since it is impossible to create an that is suitable for all different cichlid species. Giving
general guidelines regarding cichlid keeping is quite a waste of time, since one cichlid species may be killed or
severely stressed by water conditions that are highly suitable for another member of the same family.
Allen Jesson writes for several sites including two sites that specialize in
salt water and fresh water aquariums
and
the aquarium site and Seapets, a leading source for
aquariums and fish tanks.
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