Sure! Keep in mind many of the soft or octocorals are misidentified. A good example is "Palau Green Nepthia" which is actually one of the Sinularia sp. finger corals. Many corals release Terpenes into the water that will inhibit growth of other corals. This system is an excellent example. The Palau Green Finger in the middle of the tank for a long time was much larger and was an estimated 60%-70% of the coral biomass. Most corals of various soft and stony species as well as mushrooms and zoas did not show well. It took a few weeks of biweekly water changes (~10%)to see results but the other animals appeared to do better. After seeing what happened in this system I usually do not let any single species account fo rmore than roughly 10% of the "apparent" biomass (It's not easy to determine actual biomass of an animal).