geophagus tank mates

[duanes]

My Acararichthys started killing each other in a 150 gal tank at about 2-3 years of age.
In an article in Cichlid News Magazine, a minimum 200+ gallon tank was recommended for more than one, I thought my 150 was sufficient, I was wrong.
A 75 may be OK for those of the braziliensus group until they reach maybe 7.5 ", after that, I believe a larger (maybe double) size tank will be needed to control aggression.

 

[Deadliestviper7]

How about just one brasilinsis and some tough dithers?

 

[duanes]

One braziliensus and some dithers would probably be fine.
Make sure the dithers are fast, something like Buenos Aires tetras, because a 75 doesn't allow for much escape space, but a group of BA tetras might help confuse.
They'd also be able to handle the cooler temps the braziliensus seem to prefer.
I found mine were less aggressive when held at water temps in the low 70s, and high 60s.
Some I kept outside, where water temps dropped into the low 60s at night without a blink.