Never kept any of the aforementioned with my M. sebae's but they do live with Amazon Swords (actually thriving in brackish), Java Fern among some others (they are still babies and will get moved to Marine within the next few months). I do have a Mono argenteus at my parents house that is in a 120g saltwater Fish Only With Live Rock tank that has lots of Caulerpa in it and he never bothers it so you should be fine! Good luck!