Ono to s tím, že jsou všechny apisto. haremový zase tak jednoznačné nebude. V dikusi na apistogramma.com Mike Wise (dle mého názoru celkem odbornk) píše
"Apistos are cichlids (obviously) and like most other cichlids tend to be territorial, particularly if there is the ability to breed. Apisto territories vary in size depending on the species, size, method of breeding, and even individual temperament. Your tank is a good size for keeping many of the smaller, less-polygamous species like A. borellii, many of the regani-like species, and the (monogamous) pertensis-like species. For the fish species that are the more monogamous, like those related to A. atahualpa and A. nijsseni your tank will work, too - if they are a bonded pair. Otherwise one usually doesn't survive. These species tend to accept smaller territories. For other, larger, polygamous species species like those related to A. macmasteri, A. agassizii, A. cacatuoides, A. trifasciata, & A. sp. Broad-banded/Breitbinden it is at the bare minimum in size. Expect problems if each male does not have at least a tank of your size. Each female will need about half that much - until she has fry. Then it expands. Such species can be kept in pairs, but it tends to result in conflicts between the 'partners'. The male will always be trying to breed & will try to drive out of his territory any female not ready to breed. Any female with eggs/fry will try to drive the male away because he has no further purpose in the direct care of the eggs/fry and, at best, becomes a nuiscance, at worst, attracts predators."
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Roman