I recently set up a tanganyikan tank and everyone was getting along just fine for the most part. Occasionally my frontosa would chase around the cylindricus a bit but nothing too serious. Today I moved over a second frontosa I had in a 20 gal
and the larger one is NOT happy. He has been relentlessly chasing him around for the past hour. I know they do well in colonies, but is a pair of fronts too much to hope for? I'm not sure of their sex, however, they are very young still.....around two inches.