55g South American Tank

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If it were me, with your water parameters, I'd either go with small Central Americans, or South Americans from outside the Amazon basin.
The Acara's from west of the Andes, or Gymnogeophagines or other Uruguayan, Agentinian, or southern Brazilian species.
Your type water will not directly kill Amazonians, but......they are often prone to bacterial diseases in mineral rich, high conductivity water as they age.
This is why we see so many posts about HLLE disease in oscars, Amazonian Geophagus and other soft water cichlid species.
There are Geophagus from west of the Andes Like G, steindachneri, pellegrini, and crassilabrus, and the Gymnogeos that are more adept at handling higher conductivity, and the minerals in your type water.
Any specific recommendations?
Are gymnogeophagus out of my skill level/care requirements?
 
Duanes already gave both suggestions I was going to give. Rainbow cichlids are wonderful, and angelfish will eat their fry if you keep both. My rainbow cichlid fry never make it more than two weeks unless I pull them and raise them separately. Amatitlania nanolutea are beautiful as well and are a species I'd really like to get when I have tank space. Got my rainbow cichlids from Tangled Up In Cichlids.

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Duanes already gave both suggestions I was going to give. Rainbow cichlids are wonderful, and angelfish will eat their fry if you keep both. My rainbow cichlid fry never make it more than two weeks unless I pull them and raise them separately. Amatitlania nanolutea are beautiful as well and are a species I'd really like to get when I have tank space. Got my rainbow cichlids from Tangled Up In Cichlids.

Those are beautiful, but I would rather have these, unless my water is too hard etc.
1x Acara
1x Angel
1x-2x Pair of apisto
1x BN pleco
10x medium sized tetra (lemon, red serpae, black phantom etc.)
 
Those are beautiful, but I would rather have these, unless my water is too hard etc.
1x Acara
1x Angel
1x-2x Pair of apisto
1x BN pleco
10x medium sized tetra (lemon, red serpae, black phantom etc.)
That could certainly be done. Not sure on acara with apistos long term but it might be ok. My tank is larger but I have Angels, rainbow cichlids, swordtails, a couple types of small tetras, SAE's, and bushynose plecos. All mix very well together, and I'd imagine any mix of these would work in a 55 without going overboard with the stocking.
 
That could certainly be done. Not sure on acara with apistos long term but it might be ok. My tank is larger but I have Angels, rainbow cichlids, swordtails, a couple types of small tetras, SAE's, and bushynose plecos. All mix very well together, and I'd imagine any mix of these would work in a 55 without going overboard with the stocking.
Ok, so I heard you. Definitely going to go with YOUR recommendation of 20 of each in my 55g LOL

Seriously, I think I'll TRY that setup with the acara (again, ill try to get them all pretty small) and just let them grow up together, then swap out if it goes badly.

Is 2 pairs of apistogramma (id love nijsseni and agassizii...) too much for a 55g? Should I do 1 male and 2 or 3 females of one species instead?
 
Any specific recommendations?
Are gymnogeophagus out of my skill level/care requirements?
I consider Gymnogeophagus some of the easiest cichlids to care for, as long as you realize they are not tropical.
If temps are constantly kept too warm, they develop fungal and bacterial disease, but by keeping them in a unheated (room temp) tank, this eliminates that problem. My room temp tanks water temps ranged from the low 60s F in winter to high 70sF in summer
Varying water parameters of hardness, conductivity and pH are also non-issues
1607773382672.png
Gymnogeophagus. species Paso Pache above, Gymnogeophagus sp quilero (Rio Yerbalito) in my pond in Milwaukee.
1607773481314.png
Below Gymnogeophagus balzani
1607773636975.png
1607773979458.png
 
I consider Gymnogeophagus some of the easiest cichlids to care for, as long as you realize they are not tropical.
If temps are constantly kept too warm, they develop fungal and bacterial disease, but by keeping them in a unheated (room temp) tank, this eliminates that problem. My room temp tanks water temps ranged from the low 60s F in winter to high 70sF in summer
Varying water parameters of hardness, conductivity and pH are also non-issues
View attachment 1443009
Gymnogeophagus. species Paso Pache above, Gymnogeophagus sp quilero (Rio Yerbalito) in my pond in Milwaukee.
View attachment 1443010
Below Gymnogeophagus balzani
View attachment 1443011
View attachment 1443012
Wow! They sound great! So for tank mates, I'd need to look for temperate fish like white cloud mountain minnows or maybe goldfish? (I want something less common than goldfish, but those are the only ones I can think of of the top of my head...)
 
Yes there are plenty of temperate species available.
White clouds do best at room temps. (hate spell check)
High altitude Mexican live bearers like Xenatoca.
1607789025411.png
Buenos Aires tetras would be great, and are geographically correct.
There are also Cory's from that area of S America.
Below a cool water Cory, Corydorus erhardti, with Gymnogeophagus balzani in my room temp tank
1607789164014.png
Weather loaches and Denizen barbs also appreciate cooler temps.
There are too many more to list.
 
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Ok, I'll take a look around and see if I find any that I fall in love with.
Are there any super colorful Gymnogeos? Balzani is cool, but if like a bit more colorful species if possible...
 
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