I have no experience with HSB but from what I've read here you can expect them to double their size in a year when fed.

Here's a comprehensive post on HSB:
http://www.pondboss.com/ubb/ultimatebb.php?ubb=get_topic;f=5;t=000199


Pond Boss Subscriber & Books Owner


If you can read this ... thank a teacher. Since it's in english ... thank our military!
Ric