Yes they grow slowly it will not take over your tank! I have a very mixed reef, Xenia, 2 torch, 2 hammer, octospawn, variety of zoes, pipe organ, a few mushrooms, trumpet, gsp, 3 acros, 3 monti digi, a monti plate, favia, 2 flowerpot's, 3 different nems, brain! Ha tough mix I guess