I personally have seen the most dramatic growth in elongata out of all montiporas I have seen, even cap. Just ask Troy at Atlantis how fast the stuff grows, simply amazing. He had a colony go from one small no branch frag to a softball + size colony in under 1 year. Also in that year he moved the tank twice and the stuff was still a weed. I even grew it in that 10 gal nano at the old Atlantis under PC's and it still had to be trimmed regularly.