There are many grouper, that can be found together with other aquarium fish. However, we must also

Family ostrižnikov inhabits freshwater in Central and South America, Africa and India. Many representatives of this family are found in African lakes, where it is known more than 350 species. Most ostrižnikov, which are represented in the European aquariums, but derives from South America. South American cichlids 30 is much more flexible and suitable for aquariums. Even among American riksarkivet cichlids some which are difficult to cultivate even more difficult to reproduce riksarkivet (discus). They are known species that are peaceful riksarkivet and shy, but mostly aggressive, riksarkivet antisocial, so they can be found only in larger riksarkivet aquariums row. Very unpleasant habit of most ostrižnikov that rijejo and mined at the bottom of the aquarium, pulijo riksarkivet plants germinate riksarkivet and water if the aquarium is not adapted to them. From the right perch also differ in that they have on each side of the head only one nostril, through which the water enters the nasal cavity and are excreted therefrom. Most ostrižnikov has a high and laterally strongly flattened body. Very rare are the types of spiral and an extended body, almost always have a big head. Especially in males of some species seems head even higher, because the front part of the accumulated fat. Most species riksarkivet have thick lips and the fold nose. In his homeland cichlids inhabit stagnant and slow moving riksarkivet water with many hiding places. Many species are Revirski fish that remain throughout life in a given area. All described ostrižnikov is about 600 species. Early youth spent in the flock, later, when sexually mature, they are solitary. The sexual maturity, and even more so during the mating season, males find their districts. If what fish closer to the limits riksarkivet of space, which is occupied by the male is considered to be a rival, to be odgnati. His indisposition and readiness is best reflected by the male, who defends her territory, typically with specific body movements and posture fins. The challenge to fight or even defensive behavior are inherited and characterized for each species.
species that deposited eggs in a free and species deposited eggs in hiding, and these can be divided into those that deposited eggs in cavities, and such that eggs and fry to hide in the mouth. Species deposited eggs into the open, have mostly small, the transparent eggs, which can adhere to the various objects (such as stones, roots, glass, etc.). Deposited eggs is extremely high. Male and female are not significantly altered. For this group ostrižnikov characterized in that to create the right steam at the time of mating, and thereafter both protect the litter. A place where the female deposited eggs and the male fertilizes them, clean them and prepare them both. Typical is also a long spawning, which lasts several hours and is conducted so that on the cleaned object (plant, stone root) female hatches the eggs, the male while floating just above them and carefully inseminated. Typically also, the pair of fins is supplied fresh water, rich in oxygen. Samec removes non-fertilized eggs and dirt. As soon as eggs and gametes develop a soft spot for the leaves or stones by parents in the mouth transferred to the wells and hiding places that are previously riksarkivet excavated. This breed and care for their young angelfish, discus, riksarkivet yellow, pearl and red grouper. Discussion is characterized by some specific features which will be described separately.
Species that deposited eggs in hiding, they differ from previously described mainly by the fact that males are usually larger and more intense color than females. At the time of spawning males get marked riksarkivet "wedding garment." Time is short breeding riksarkivet season, taking care of the brood while leading the female.
Species hide eggs and fry in the mouth, called ustonoše. They typically tend to have highly colored eggs are free or have greatly reduced the egg suckers, of these, very few. During courtship, males get the distinct wedding colors, females generally do not change color. Mating takes place so that the female lays eggs in a prepared hole, where they are fertilized by the male. In some species the female takes the eggs deposited into the mouth and absorbed by the water in which the males sperm. Thus, the eggs are fertilized in samičinih mouth. The development of eggs in the mouth samičinem take different lengths of time. Then the female exceptional lose weight, because almost nothing is. When the fry sufficiently developed initially by the female for a short time leaves from snout to find food. As soon as they are in danger or at dusk, opens the muzzle and all gilts hour swim in it. Such samičina concern takes approximately three to four weeks, the development of ova in the mouth takes place differently depending on the type of ustonoš, from 10 to 18 days. As a rule, grouper grown in larger aquariums with lots of hiding places where you each species can regulate their districts.
There are many grouper, that can be found together with other aquarium fish. However, we must also be alert to such when they Mating change their behavior and will begin to pick plants or dig a pit at the bottom