Aquatic Predators: General Guide to the Various Severum Species - Aquatic Predators

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General Guide to the Various Severum Species

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Posted 22 September 2005 - 09:51 AM

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<div><strong><font color="fffffff" size="4" face="Arial, Helvetica, sans-serif">Scientific
Name:</font></strong></div>
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<div align="left"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif">There
are many different species of Severum. The most commonly found variety
is the Turquoise, or Heros appendiculatus. Golds are also believed
to be morphs of the same species. Other uncommonly found species are
H. severus, H. notatus, and H. efasciatus.</font></div>
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<strong><font color="fffffff" size="4">Place of Origin:</font></strong></font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">Amazon
basin in South America</font></div>
<div align="center"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif"><img src="http://kingsoftheaquarium.com/cichlids/severumtank7.jpg" width="300" height="225"></font></div>
<div align="center"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">A
group shot of my 3 Turquoise Severums along with my female Bloody
Parrot</font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Average
Cost:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">I have seen
quarter sized Turquoise and Gold Severums for about $5 to $8. Adults
of the same colors are usually under $40. A more colorful variety
of the Gold that has much more red (I will refer to it as the Red-Gold
Severum from now on) demands a higher price over the regular Gold.
Quarter sized juveniles go for about $15 to $20. Adults sell for
$60.</font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Size:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">Severums are
not particularly fast growing fish. They mature at around 8 to 10
inches and can grow even larger in the wild. An adult specimen requires
at least a 55 gallon tank. If you plan on keeping more than one
together I recommend a 75 gallon or larger.</font></div>
<div align="center"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif"><img src="http://kingsoftheaquarium.com/cichlids/severummaledominant1.jpg" width="300" height="238"></font></div>
<div align="center"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">My
dominant male Green Severum at 7inches</font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Water
Requirements:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">Being South
American Cichlids, Severums should be kept in water that is soft
and slightly acidic to neutral. I keep mine at a pH of about 6.8
and they're doing great. They do well in temperatures of 78 to 82
degrees Fahrenheit. Severums can be very sensitive to water quality.
There shouldn't be any trace of ammonia or nitrites. Nitrates must
also be kept at a minimum. The tank should be kept very clean and
well filtered. I recommend strong power filters that move a lot
of water such as Emperors. These filters are efficient and have
proved very useful in all of my tanks. I also recommend performing
weekly water changes of about 50% to 75%. Good filtration and frequent
water changes will ensure the best water conditions. </font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Feeding
Requirements:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">I have heard
some aquarists claim that they feed their Severus feeder fish. There
is NO need to feed your Severums feeders, not even as treats! Not
only do they not provide good nutrition, there is that huge risk
of disease. Severums will do fine on pellet foods. I recommend HBH's
Super Cichlid Sinkers, and AZoo's 9 in 1 Arowana Sticks. To give
some added color to Greens you may also try AZoo's Discus Blue Pellets.
As a treat a give my Severums some frozen beef heart, shrimp and
squid once in a while.</font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>General
Appearance:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">All the various
species of Severums are very similar in appearance. Juveniles start
out with dark vertical bands running the entire length of the body.
As the fish grow, the bands will fade. Only one dark one at the
base of the tail will remain. Even after maturity the bands can
reappear and then fade again depending on the fish's mood.</font></div>
<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">Adults are varying
shades of greens and browns with some reddish spotting and iridescent
pearls thrown into the mix. There are two main color variations
that are commonly found, the Turquoise and the Gold. They are both
species of Heros appendiculatus. The Red-Gold color variety mentioned
before are believed to be color bred variations of the common Gold
Severum. They can have a very stricking appearance. </font></div>
<div align="center"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif"><img src="http://kingsoftheaquarium.com/cichlids/severummale3.jpg" width="320" height="263"></font></div>
<div align="center"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif">My male
Severum at 9&quot;. Above shown without flash. Below shown with
flash.</font></div>
<div align="center"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif"><img src="http://kingsoftheaquarium.com/cichlids/severummale4.jpg" width="450" height="264"></font></div>
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<div align="left"><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Temperament:</strong></font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">A Severum's
temperament can vary. I have seen docile individuals and also nasty
ones. I believe the main difference on aggression is if there is
a pair or not. Of course the pair will be much more aggressive because
they will stake out a territory and defend it to no end. I have
three Greens and one Red-Gold together (I believe there to be one
female and 3 males). Out of the bunch, there is one dominant fish,
a beautiful male who has laid claim to the female. He chases her
around once in a while but gets no response out of her because I
believe that she has yet to reach maturity. The other males are
left alone as long as they don't stand up to the dominant male,
or go near the female. </font> </div>
<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">My group is
very picky as to who they will allow to live with them. The one
large male decides who he likes and the others follow his decision.
Who they don't attempt to kill in the first day are considered to
be accepted. They have killed a beautiful Geophagus surinamensis
and almost killed my Albino Tiger Oscar. I believe that the Severums
would be more docile if there was no apparent pair.</font> <font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">
The easiest way to avoid problems when introducing a new fish is
to watch them very closely for at least a couple of days.</font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="3">Stay away
from any tankmates that are not aggressive enough or are slow
such as Angels and Discus. Severums do fine with other large
semi-aggressive cichlids. Good choices are Oscars, Uaru, some
Acaras (Blue Acara and Ports Cichlid in particular) and Bloody
Parrots. They can also be kept with Silver Dollars. Don't keep
them with anything mega territorial like Jack Dempseys, Managuense,
and anything else of the sort. I have also successfully kept
them with Freshwater Stingrays. </font></div>
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<div><font color="fffffff" face="Arial, Helvetica, sans-serif" size="4"><strong>Breeding:</strong></font></div>
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<div align="left"><font color="fffffff" size="3" face="Arial, Helvetica, sans-serif">All
the species of Severum except for Heros severus are egg layers.
H. severus is actually a delayed mouthbrooder.</font></div>
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