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

[troublesum]

TNC= Trust No Cichlid

 

[Fanatic_Fish_Lunatic]

TNC= Trust No Cichlid

They're intelligent fish, and like people, intelligent=harder to trust, lol.

 

[Fanatic_Fish_Lunatic]

I can't speak to the Parachromis, but the Andinoacara aren't likely to eat each other at those sizes. Aggression between them is a different story and will depend on things like tank size and arrangement, other fish in the tank, gender mix, and individual temperament.


This should be read carefully and not misinterpreted or extrapolated into a universal rule. "Small habitat," as in a cenote, is one thing. Rivers and lakes are another. In fact, there's a scientific term, syntopic, for species in the same genus living together. An example of this is Geophagus sveni and Geophagus neambi.
https://www.mapress.com/zootaxa/2010/f/z02429p042f.pdf

Yeah, I don't see my 4 inches blue acara and Rivulatus chase after those 2 inches, but my jaguar was trying to, I might have to moved him out. Anyways, would a 3-3.5 green texas cichlid be fine?

 

[troublesum]

A 4in fish now, will become mature and be a 8in fish within a year and when mature or sub adult all bets are off

 

[neutrino]

would a 3-3.5 green texas cichlid be fine?

As juveniles maybe and maybe not. The thing with the various species you're talking about is each has either the potential or tendency for varying levels of aggression and some are quite likely to fight each other at some point if kept together very long. Which ones will (or which will be the first) do so, or which might tolerate each other (or tolerate each other until one snaps) isn't 100% predictable.

 

[Fanatic_Fish_Lunatic]

As juveniles maybe and maybe not. The thing with the various species you're talking about is each has either the potential or tendency for varying levels of aggression and some are quite likely to fight each other at some point if kept together very long. Which ones will (or which will be the first) do so, or which might tolerate each other (or tolerate each other until one snaps) isn't 100% predictable.

Will 2 inches fit in its mouth? I mean, this one is quite docile(for now).

 

[Fanatic_Fish_Lunatic]

Update: All my Rivulatus survived last night, every fish survived, I'll continue observing them

 

[troublesum]

Update: All my Rivulatus survived last night, every fish survived, I'll continue observing them

Please update us in 6 months to a year

 

[neutrino]

Will 2 inches fit in its mouth? I mean, this one is quite docile(for now).

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.

 

[Fanatic_Fish_Lunatic]

Jokes on you,

Please update us in 6 months to a year

Jokes on you, I have bad memory Hope I won't forget.