The US sensors are present in the antennae of Mosquitoes and genetalia of Cockroaches. US emitted by the Repeller will scare away the pests and confuse them. Ultrasonic sound will create stress on the nervous system of insects and jam their own US frequency.
South America also houses several larger river cichlids. These species will often get along well in aquariums. For example, various species of freshwater angelfish and the discus fish make great tank mates.Both species prefer soft, acidic water and, importantly, grow to about the same size.frican cichlids prefer hard, alkaline water. Most are very aggressive, but in a large tank, dissimilar-patterned species can get along. You do want to avoid keeping closely related species together, since they may produce undesirable hybrids. For example, no two Auloncara species should share an aquarium.
Our list of cichlid types covers a wide array of species from all around the world. The cichlid family is so vast that there are many types of cichlids that make good aquarium inhabitants. Some South American Cichlid species are of a more amiable nature, such as the severum, angelfish, and dwarf cichlids.he South American Cichlids are also known as New World cichlids and include Central American Cichlids and American Dwarf Cichlids. They are found primarily in Central and South America, with the Texas Cichlid found in the southern part of North America.