What is normal growth rate?

[robbyville]

Hi all,

I have seen some beautiful progression photos of people's tanks and corals. At the same time my corals do not seem to be really growing at all!

As an example I have a small 1-1.5 inch SPS frag, bright green I believe it's a digitata of some type bought at J&L's probably around 3-4 months ago. The polyps are always extended and the frag seems to have grown in breadth a tiny bit but no growth over the disc, or upwards movement, etc.

Calcium in the tank is generally around 420-440. As some might remember I am currently having some phosphate issues of around .25 which I am told can stunt coral growth.

My main issue, is that I want to see some growth and I would have imagined that 4 months would be plenty to see a difference. Am I simply being impatient?

Thanks

Rob