Thanks to all for their incite into the Eheim filters. Looks like that is the way I need to go from all the info available. Easy to prime after cleaning and the maintenance procedures seem simple to perform. Another question if I might ..... what filter material do you use and why ..... ?? Thanks, Ken G ----------------------------------------------------------------------- -- 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 Trading at http://blox.dropship.org/mailman/listinfo/apisto_trader