Central America has several great lakes like Atitlan, Managua, and Nicaragua.
The lakes are rocky with hard, alkaline
water.
The cichlids in these lakes are generally very territorial and aggressive and should not be combined in the same with peaceful species such as livebearers.
Lake Nicaragua is a large freshwater
lake; it covers an area of 8264 sq. km and is the largest
lake in Central America. In places the
water will reach depths of 84 feet, and it was once well known for being a haunt of Caribbean pirates who would enter the
lake through the San Juan
River. This
river leads directly to the Caribbean Sea.
As expected with rocky lakes, the
water is very hard (15-25DH) and alkaline (7.5-8.2).
Temperatures range from 24-27 deg C.
Setting up the tank
The main décor in this
tank is large, sturdy
rock structures. Smaller
tanks may struggle to provide enough space so a minimum
tank size of 250 liters (55 gallons) is recommended.
Add the
rocks first to build up your structure, and then add the sand around the
rocks to form the
substrate. The main reason for this is
fish tend to burrow in sand; this will cause your
rocks to topple if placed on top of the sand.
Water current needs to be kept low, turn down the outlets on your
filters to replicate this.
Plants for the tank
Plants will struggle to survive in these alkaline, hard
water conditions. Any that does will be destroyed by the cichlid inhabitants making it useless to attempt any planting at all.
Fish for the tank
Loricarids (armoured
catfish) make for good
substrate cleaners, these
catfish like plenty of swimming room combined with hiding places if required. Many of the different species will only grow to a maximum size of five inches but be careful if adding two males to the
tank.
Pimelodids (naked
catfish) can also be added, these species will grow larger in size but with a 55 gallon
tank this should not be a problem, Probably the most well known member of this family is the pictus
catfish, if kept it should be housed in small groups.
Livebearers are one of the hardiest
fish species, this makes them very popular with
fish keepers and there is a great deal of choice. Bear in mind that cichlids are also going to be added to this
biotope so the smaller species could be seen as
food, select your inhabitants carefully. Sailfin
mollies belong in this group and are extremely hardy, tolerant of a wide range of
water parameters, and fairly easy to breed if you choose to do so.
Cichlids that can be added are
convict cichlids,
red devil cichlids, Texas cichlids and so on. It may be advisable to research the cichlid species you are interested in to try to get some of the less aggressive species. Some of the species will grow large like the jaguar cichlids so bear this in mind when selecting your
tank.
Sources of information
Taken from
Rhett A. Butler/mongabay.com,
wikipedia.
Central American Rocky Lake
has been viewed times since June 30, 2009.