Can 2 inches Cichlids be kept with 4 inches Cichlids without being eaten?

Fanatic_Fish_Lunatic

Jack Dempsey
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Jul 24, 2024
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It's not that he'll try and eat the other fish so much as you can't judge the future behavior of territorial, aggressive species (which most of yours either will be or can be) on what they do as 2-4 inch juveniles-- or when a fish is new to a tank, for that matter. What may seem like a docile fish at a smaller size, when their programming tells them to just lay low and not get eaten, can change pretty quickly once they get some size and confidence, or when, like teenagers not yet fully grown, they approach their reproductive stages. Some species that will accept other fish that aren't too similar in such characteristics as temperament, shape, behavior, etc., will not tolerate what they see as rivals for dominance and territory. So I don't know what your long term plans are or how many tanks you have to be able to move and separate fish, but it's something you should be prepared for.
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duanes

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Agree with neutrino, with cichlids (in most cases) its not about whether or not they will eat each other...but
it's about how much territory an individual or pair needs to fit into there comfort zone.
In a tank, or pond of only a couple or few hundred gallons, 1 pair of adult cichlids may totally max that amount of territorial space out.
In a tank or pond of 500 to 800 gallons, it may be possible to keep 2 pairs of cichlids.
Even in a territory the equivalnt of @ 10,000 gallons, the cichlids in this cenote have quite torn up fins from territorial battles.
027 zps4b102ffd
In nature in rivers west of the Andes where Andinoacara species are found, there is only 1 one other genus of cichlids species present (Mesoheros festae), and their territories seldom impinge or even come close.
They do share habitat with large shoals, and a number of Characin species, but seldom other cichlids.

I find this is a common occurance with many riverine species.
Mayaheros beanii on the Pacific coast of Mexico, is the only cichlid in its habitat, but plenty of Characins.
Another cichlid on the central Pacific coast of Mexico, is Amphilophus istlanus.
With Nandopsis it is the only cichlids found on Hispaniola, or Cuba, Nanopsis tetracanthus, and a tiny separate area where Nandopsis Ramsdeni is isolated.

Where I collect cichlids in "some" Central Panamanian rivers, such as the Pacora , so far, I have only found 2 species coexisting in an area of hundreds of yards, and millions of gallons
Andinoacara coeruleo punctatus and Isthmoheros tuyrense.
IMG_1294.jpeg423f6650-1c07-4148-a2fa-8b2446d3b860.jpeg
Of course in lacustrine environments there are often more species, (especially in African lakes), but here billions of gallons are involved.
 
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