Its been a little over a year with TBS and I have to say I wouldnt change a thing. The life on my rock is amazing even after one year. I have tunicates, sponges, cup corals, medusa worms....you name it. In fact, I just mounted an SPS staghorn frag on a live oyster and everytime the oyster moves, so does the frag. Its great to watch someone react to it!