well i've had mostly the oposit results but i think i'm the few.i have pavons,hydnophora,monti,and pocillopora and all have been fine although slow growing when my calcium,alk,and magnesium were off.they all have tripled in size in 7 months though.however my open brain has been a challenge to keep color and puffy since day one and if its grown at all i have'nt noticed.my lobo has'nt grown in a yr not enough to notice.i have 3 chalice or echinophylia.blue one has grown an eighth inch in 7 months and its hard to keep it blue,watermellon has barely grown and the purple one has just barely grown in 5 months.i have to move them around from time to time for them to have to perfect light for color.my trumpet has'nt grown but is healthy.i think lps are gorgious but unless i get a big peice for a reasonable price,whick right now i won't,and i'm not going to buy a frag for it not to grow.lps are most pretty when big and people are selling per polyp.they ruin the beauty of the coral by cutting it up for frags.