Sure which thread is it in?

its titled saving our reefs youll see it im sure:):) cheers girl:)

haha ya def wasnt hard to find. Posted my thoughts. Great thread and very good questions

Get more than 2. I had 7... they were one of my favorite things in the tank to watch. I'm down to 1 :(

I've got a 20 gallon tank, would more than 2 be okay in that size?

Depends on what else you have. They're pretty easy in the bio load.