I’m going to bump this thread however I unfortunately don’t have any HUGE colonies that are 14 inch plus, my largest is a ricordea rock at a good 1 foot with each polyp being I think 3-4 inch across.
I also have a 20+ head Duncan but he’s only about 4 inches.
I can’t find a measuring tape but will add a photo of both colonies with a measuring tape infront when I find one.
Also, I have a piece of information I’d love to know as I have an acropora frag that I now have as my target to grow into a large 4-6 inch colony (If not bigger to frag). That piece of information is:
How long have you had the colony and what size did you get it as (I.E. did you start it as a minuscule frag that most SPS will start as or was it already rather large).