Hera are some plans for a filter i found online and built for a friend,
http://www.thekrib.com/Filters/trickle-blackford.html#0
Or just But this 1
http://cgi.ebay.com/OASE-BIOTEC-5-W...yZ103440QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Good Luck,
Andy
http://www.thekrib.com/Filters/trickle-blackford.html#0
Or just But this 1
http://cgi.ebay.com/OASE-BIOTEC-5-W...yZ103440QQssPageNameZWDVWQQrdZ1QQcmdZViewItem
Good Luck,
Andy