Hmm... interesting question Jesse. I will be curious what the more experienced reefers have to say on this one. As for me, if there is one thing I have been able to grow it's coraline - I can't keep it off the sides of my tank let alone rock and snails etc. I have had good luck in a tank that had nothing but PCs and standard fluorescents for lighting as well as my current system with MH/VHO. One constant, however, is that I do typically dose with some Kent supplements like Coral Vite and Strontium/Molybdenum (as he braces for a verbal lashing) so perhaps it is a trace element issue that could also be taken care of by more frequent water changes... Curious to see what the pros say.
Good luck!