I've worked with and kept many varieties of small polyp stony corals over the years. I truly believe that the most prolific SPS I've ever encountered is ORA Pink & green Pocillopora damicornis coral. I was involved in dismantling a coral greenhouse after the majority of livestock had been transferred into a brand new facility. I was amazed at how much P&G damicornis remained attached to everything. It was on the system walls, the bottom, all over the dump bucket returns. You get the idea, it grows like a weed. Anyone else have experience with SPS corals that will grow well no matter where you place them?