A question about Fist of Guthix.

Hey everyone. As you can tell i'm new around here, if this is the wrong section of the forums, just move this thread.

My main question is this: what is the minimum amount of players required to start a round of Fist of Guthix?
I saw a discussion on runewiki, and one assertion was that 18 are required in the waiting room to begin Fist of Guthix in that world. (That is, a world that is unofficially a FoG world).

Anyone know?
Thanks in advance.

 

I thought it was 25, although I'm not entirely sure. I just looked around on the web and couldn't find anything. The maximum is 250 though.
I would say this belongs in RuneScape 2 General.

 

Oh darn, I just got it moved here.
Thanks anyway for your reply.