JD with geos?

  • We are currently upgrading MFK. thanks! -neo
really cuz I just got rid of the JD since every time a silver dollar got near him he hit it like a train hittin a stray cow lol. Geez he was drivin me nuts, lovely fish, just not going to work in my tank.

I thin centrals certainly have an edge on south Americans. Not all, but most.
 
oh wait Im sorry, I thought you said yes to them being ok with them, sorry I was wiped out when I read that last. Sorry again. Take care, and your right.
 
Most North American cichlids (and I consider Mexico part of North America) are simply too aggressive to be kept with South American cichlids.
I don't know if its the isolation in certain river systems that has ramped an evolutionary aggression hormone, but whether Herichthys, Rocio, or Nosferatu the tendency to eliminate any other cichlid in an area seems very strong.
Where I have snorkeled with JDs in nature, they are either the dominant and/or only cichlid in the biotope, or only share vast areas (thousands of gallons) with xCichlasoma uropthalmus, and even then, the uros seem to prefer more open areas, while the JDs always near substrate, in caves, or on the floor or rock walls, and always shredded from territorial battles.
click to run video

and another video of JD habitat
https://www.youtube.com/watch?v=txmi1mng_XQ
 
I never had any issues at all. My jack was great with any and all fish. I got a few later on trying to breed them and they were all easy going. But also I've always had lots of tank space and been able to mix things most wouldn't. Or I just have skills when it comes to fish. Lol

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My guess is that in a large tank, there are a handful of geos that could hold their own, namely altifrons and 'Geophagus' brasiliensis, which aren't really like other geos anyway. I have seen large brasiliensis males mixed with CA cichlids in large community tanks at a local cichlid dealer and they don't seem to have any issues keeping up.

But again, it boils down to your tank size, and stock, and the personalities of your individual fish. I don't usually mix CA and SA unless we're dealing with the smaller, more manageable CA.
 
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