I am thinking of adding some sort of dwarf cichlid to my 55 gallon with my tetras? Would these work? If so, what is their aggression like and what group sizes do you recommend? I was intrigued seeing these on Imperial Tropicals.
I kept krobia xinguensis years ago. They grow considerably larger than the laetacara species you mention. I think mine were in the 6" plus range. I remember the krobia to be fairly typical of medium sized acara behavior - not overly aggressive and will eat tetras if given the opportunity. They are an interesting fish, but think that the laetacara would be a better fit for your tank.
I kept krobia xinguensis years ago. They grow considerably larger than the laetacara species you mention. I think mine were in the 6" plus range. I remember the krobia to be fairly typical of medium sized acara behavior - not overly aggressive and will eat tetras if given the opportunity. They are an interesting fish, but think that the laetacara would be a better fit for your tank.