The only thing which will dictate and determine your rate of growth and/or coloration, is your specific tank conditions, i.e parameters, lighting etc. If reefer A puts on 5 polyps per month in their tank, there is no guarantee
that you will have the same growth rate. I see posting online of "fast growers", "slow growers" and this is a marketing tool as no one, not one vendor online or a LFS can assure you that you will get the same growth rate as they did or anyone else for that matter. No one can even say they will grow fast for you or even survive. WHY? As stated above, your specific tank conditions will dictate and determine everything that is positive or negative in your tank.
I would focus on providing a good environment which is most conducive for growth. I don't know what those polyps are that you mentioned, but smaller polyps in diameter can't tolerate as much high current as larger disc polyp as it will cause polyp retraction. If you have a mixture of both, then placement relative to current strength is recommended.
Good husbandry practices, a mature system, good lighting, having fish in your tank, as your polyps will greatly benefit from their poop, monitored and stable parameters will all help you achieve a thriving system which you will enjoy for years to come.
Over fragging, excessive fragging and premature fragging can all possibly lead to slow growth, no growth or even premature death. It happens all the time. Knwing the person you get them from, there husbandry practices, knowing their tanks lighting type and tank parameters alone can mean the difference between a good experience and a gad one with new purchases.
Just my 2 cents.
Mucho Reef
MuchoReef
