soft corals generally aren't too picky. as long as your water is clean, and most readings are vaguely within the suggested range they should be just fine.
good lights too. now when i say good, i don't necessarily mean a $4.2 million dollar LED system developed by NASA, just a decent setup that can provide adequate light. some softies can be grown in relatively low light, but most of them appreciate moderate light, like a small T5 fixture. nothing crazy.
certain softies like toadstools may practice allelopathy, so running carbon when keeping certain species can be beneficial.
last consideration is growth. once established and happy, most softies can quickly start taking over every available piece of real estate. so plopping that kenya tree you like on the biggest, heaviest, base rock in your pile may not be the best idea. you can always remove things later with razor blades and kalk paste, but a little forward planning can go a long way.