



The photo I posted was of mine, I worked with them for about 5 years.
I started with 20 juvies (@1") bought from a breeder in Chicago, first put in a 75 gallon tank to grow out.
They started spawning about 2.5" , and their eggs are deep green in color, and were (at that point) moved to a 150 gal.
They are omnivores so a pellet containing a high Spirulina algae content was used
kept in a S American community cichlid tank with pike cichlids, and Acarichthys heckelli. Took them about 2 years to reach @5".
They are a shoaling species, and were never aggressive as a group in my tank, except with each other during the spawning rut, and when defending a spawning site, even then hardly aggressive compared to say....any Central American cichlids
In nature they appear in clear water and black water habitats, so I would occasionally use black water (achieved by soaking leaf litter) to imitate seasonal changes they might experience in nature (rainy season/dry season) the black, softer water seemed to initiate spawning .
My tap water pH averaged 7.8 so it was a little on the high side for them, and alkaline, so rain water was combined to my tap water to dilute the higher pH and mineral content.