Well I didn't have the exact numbers and rather then guess I sent an e-mail. Here is the response I got from Ron Shimek.
From: Ronald L. Shimek
Sent: Sunday, June 10, 2001 3:29 PM
To: ***********
Subject: Re: Linckia laevigata
[hr]
Hi,
Sorry not to have replied sooner.
> What would be an average growth rate one could expect from a healthy
Linckia laevigata.
Darned if I know, for small ones, about an inch or so in diameter, it could
be quite considerable, perhaps doubling size in a year.
Larger ones, adults over 3" probably could add about 1/2" to 1" in diameter
in a year.
Full grown ones, about 8-10 in diameter and bigger, probably grow very
slowly.
Cheers, Ron
[hr]
SiF