i have a 12g jbj nano with just one 24w 50\50 light and soft corals are doin good i have toadstool and torch(dead due to shrimp now) mushrooms and zoas and my kenyi trees which grow like weeds, all doing good . look for my thread here in the nano section. i added a bio cube skimmer and my water quality is doin good i do a 10% water change a week.