Green Terror Compatibility

[Deadeye]

Definitely a white suam (gt with white fins). You definitely have a nasty one on your hands. If you were to try other cichlids, they would have to be the meaner ones that can put up with the terror (con, normal jd, maybe even oscars if tank size permits). They are unpredictable and I can’t make any promises. Gts are one of the meanest and won’t play nice with others.
It would probably be safest to keep it with large, non cichlid fish like silver dollars.

 

[Remedy944]

Definitely a white suam (gt with white fins). You definitely have a nasty one on your hands. If you were to try other cichlids, they would have to be the meaner ones that can put up with the terror (con, normal jd, maybe even oscars if tank size permits). They are unpredictable and I can’t make any promises. Gts are one of the meanest and won’t play nice with others.
It would probably be safest to keep it with large, non cichlid fish like silver dollars.

Worst case I'll grab a Red Devil to keep him humble lol.

 

[Deadeye]

That would probably just end with you getting a jag or festae to control the devil. Lol

 

[Rocksor]

Add all cichlids at the same time. The GT will go after any cichlid 25% larger or 25% smaller than itself.

 

[duanes]

Add all cichlids at the same time. The GT will go after any cichlid 25% larger or 25% smaller than itself.

Agree with the above.
But I am also of the opinion, that South American Cichlids, mixed with Central American cichlids in tanks of small to moderate size, 100-to 180 gallons (or less), do not usually end well. It may work temporarily while the cichlids ar immature, but once size and maturity (territoriality) set in, is when things go to hell.
There are very few cichlid species that inhabit the same waters as the GT so expecting it to play nice with others is a bit far fetched, but that's when the problems begin, because it usually cannot stand up the more robust cichlids like Parachromis, and Amphilophus.
The only cichlids that share natural habitat with the GT, are Mesoheros festae, and M. ornatus(gephyrum), other fishes that share habitat comfortably are tetras, catfish, and other non-cichlidsM gephyrum below.

 

[Remedy944]

Agree with the above.
But I am also of the opinion, that South American Cichlids, mixed with Central American cichlids in tanks of small to moderate size, 100-to 180 gallons (or less), do not usually end well. It may work temporarily while the cichlids ar immature, but once size and maturity (territoriality) set in, is when things go to hell.
There are very few cichlid species that inhabit the same waters as the GT so expecting it to play nice with others is a bit far fetched, but that's when the problems begin, because it usually cannot stand up the more robust cichlids like Parachromis, and Amphilophus.
The only cichlids that share natural habitat with the GT, are Mesoheros festae, and M. ornatus(gephyrum), other fishes that share habitat comfortably are tetras, catfish, and other non-cichlidsM gephyrum below.
View attachment 1437161

Yeah, the GT doesn't bother my Pictus catfish at all. And I felt like I have always read that JD and Convicts make good tank mates, but I feel that's pretty much a dice roll as anything else. What's the experience of doubling down and adding another GT of equal size?

 

[Deadeye]

If it is the opposite gender, they may kill each other or pair off. If it is the same gender and are both females it could work. If both are males, you will end with 1 green terror.

 

[Rocksor]

If the current GT you have is too aggressive for you, find another GT with less of a mean streak. Even with 2 females, they will compete with one another. Having 2 GTs is a crap shoot, might as well get 8 and try to see who will pair off in a 6 foot tank

 

[duanes]

It's always a 50/50 chance when adding a female that the pair will be compatible, or that she will die in a tank as small as 75 gallons.
If I were going to add a female, I'd get 2 or 3, or more females, and expect/hope (if lucky) that one will survive. In a 6 ft tank, odds might get a little better.

 

[djsaltynuts]

green terrors should not be put with anything that look like them so no shiny blue fish and my green terror did not tolerate my macaw cichlid because they both have a black blotch in the center. the blue jack dempsey is a pretty fragile fish anyway. green terrors also should be the undisputed dominant fish. imo to get the most out of your tank you should get a 40 breeder move the terror in there and enjoy him for the magestic fish he is alone because that is how they thrive. even if people are telling you to put him with other aggressive cichlids you should not because the green terror cant have competition. a schooling fish that he cant eat would probably be your best bet like a congo tetra. mine gets along wonderfully with an oscar but my oscar is quite the gentle giant so you could try this but i dont know if itd work for you since the terror wouldve established the tank as his. something like a rocket gar or bichir might work well because they’re formidable predators that cichlids seem intimidated by but they aren’t aggressive towards the cichlids either. maybe geos would work for your terror. green terrors are really versatile and can go with allot theyre just high strung and can get jealous of another fish easily so if they deem a fish too colorful or too much competition they will kill it but they can definitely be kept with run of the mill community fish too.