Plz help!!! can i put my lutino lovebird and my black masked lovebird together in the same cage?

my lutino lives outside (so now i want him to live inside) so can i out it with my blue black masked lovebird? i dont know what gender it is but my lutino is a male thats all i know. for now im putting them in the same cage just to test it out. they seem to like eachother but i saw them fight this morning (it wasnt a bad one but my lutino started it. he is about 2-3 years old and my black masked one is 6 months.