I've had this tank up about 18 months, but only in the last year has it really become seasoned. Pretty much every inch of the LR is covered with somekinda growth. To the left of the bigger toadstool the yellow polyps have taken over one of the overflows, on the back wall behind the toadstoll the GSP is starting to take over half the wall and the other half has watermellon zoas that are finally starting to encrust the back wall. There are fish in the tank, they hate the flash and hide. Flame Angel, Hippo, Purple Tang, 2 Fire fish, 6 line, 3 green chromis, 2 percs that host in my frogspawn and a mandarin. When fully extended the toadstool is about 18", it touches the front and backside of the glass. The Kenya started off as a 6" frag about a year ago, now look at it....I'm going to remove the Golden Maxima as having 3 clams in tank is sucking the calcium like crazy