Well after reading all of fat tonys posts im sure he will chime in seeing as he seems to know his montis

my orange monti started out at about an inch squared now its around 3-4in my question is every time it seems to encrust to a diffrent rock it seems to have this white stringy "spit" comming off of it......1. is this normal and 2. why is it growing so fast iv only had it about 2 months
tests are all normal -0- ph is 8.3 after the bulbs have been on for a bit 8.1 when there out.
there under 150watt M/H lights in a 10g (i know smallllll tank for sps) but there being moved once my larger tank has cycled.