"Yvan Alleau" <yalleau@coas.oregonstate.edu> wrote: > > what is perspex? > Clear acrylic, ie what acrylic tanks are made from. It's fine for controlling adults but if you want to stop fry from crossing the divider I imagine that the whole size needed may be restrictive to good water flow unless you position the intake and outlet pipes of your filter on opposite sides of the divider. Andrew ------------------------------------------------------------------------- This is the apistogramma mailing list, apisto@listbox.com. For instructions on how to subscribe or unsubscribe or get help, email apisto-request@listbox.com. apisto-digest@listbox.com also available. Web archives at http://lists.thekrib.com/apisto