A 125 gal tank is not a large tank.
I don't consider my 180 a large enough tank for any but medium size cichlids, so to me, cramming too many fish in that size tank or smaller one, and adding something the potential size of a Vieja IMO, is not a good idea.
I also do not consider a 180 large enough for for more a single or pair of Vieja, much less adding more cichlids.
As semi adults, my coerleopunctatus were fine, it was when they hit maturity that the blood bath started, and the males only top off at about 7" (but I must admit I did expect problems).
To me a goal of FMs and a few JDs (and some non-cichlid dithers) will fully stock a 125 as soon as they all mature.
I don't consider my 180 a large enough tank for any but medium size cichlids, so to me, cramming too many fish in that size tank or smaller one, and adding something the potential size of a Vieja IMO, is not a good idea.
I also do not consider a 180 large enough for for more a single or pair of Vieja, much less adding more cichlids.
As semi adults, my coerleopunctatus were fine, it was when they hit maturity that the blood bath started, and the males only top off at about 7" (but I must admit I did expect problems).
To me a goal of FMs and a few JDs (and some non-cichlid dithers) will fully stock a 125 as soon as they all mature.