Question about Favites growth rates

[Mcgeezer]

I recently picked up a frag of each from a WWC auction (Tyree War Coral and JFox Toro Bravo)

I've never kept brains before simply because my prior set up didn't allow for it, but I've found 2 places on my rock work where they could grow up nicely.

My parameters are close to ideal, so growth should be good

Ca 440
Dkh 9.8
Mg 1260

What kind of growth rate should I expect?

 

[Reef Bass]

I've had a couple Favites pentagona (war corals). I find their outer rim enlarges with new polyps appearing there. It's not a rapid grower, but I would expect some diameter increase each month.

Tyree AE Purple War Coral

Red and purple war coral