i see about a mm of growth on the edges a week or so...you can just break the edges off to prune...i have some green .. some purp and some red..trying to get them to grow together..i have found it to be fairly simple sps..good confidence booster for me..
my acros dont seem to do anything..they just sit there..dont even get polyp extension....
but all my montis do fine..i have rainbow (base w polyp ).red w green ...green w blue.. blue w green ..and some purple haze..encrusting as well ..they all do well ...