Dividers?

First topic message reminder :

What do yall use as dividers? I'm going to have to make some soon so I need to know what material is ok for a tank. I will be using suction cups for attachments.

go to home depot buy some screen for window and cover the egg crate

Well I already bought the stuff from michales. I forget what the called it but its for making things with yarn and it has small holes.
I will keep yall posted and let you know how well or badly it works