I have a pair of true perculas and a gold-striped maroon in the same tank. I was going to pair my maroon but she's the prettiest one I've ever seen so I didn't want to risk it. I think as long as they have their own anemones and are kept seperate you have a better chance, but there is always that risk. Mine are in a 125g now but I did have them in a 55g which is smaller than your tank. I guess it depends on how lucky you are.