I'd like to add she is about 7-8 years old, and is 10'' TL measured out of water. From what I read they don't get this big. It is nearly impossible to tell males from females and venting is the only way. She isn't aggressive at all, and can't be kept with aggressive cichlids. I have had luck keeping her with a. rostratus (now) and a firemouth (past). You need to have a large tank for that to work. I recently had to get rid of a male JD in my 150g, because he was beating up my robertsoni.
I wouldn't keep one in a 55g w/ a pbass. The water requirements are different, but the biggest problem will be that the pbass will grow much faster. Robertsonis are very slow growers, will end up as food before you know it (also the others might too). A robertsoni would be good in a 55g for life and IMO totally worth it.
Very beautiful female cichlid. Ohh man, can't wait until mine starts coloring out. You can tell the blue is starting to pop on him. I'm actually going to move the pbass today. The pbass is starting to chase my bandit Cichlids and Robert around. I'm moving him to my 240. Would hate for him to end up as food. Does yours sift through the sand like a Geo?
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