Black ghost knife fish

Black Ghost Knife Hi, I have a 9-10" black ghost knife for sale, have had him for over a year and he has been a good fish, but he is outgrowing our tank. Will sell for £25 and buyer will have to collect as we don't have a net big enough. Will consider swapping for external filter or compatible fish? Text Alison if interested Advertiser: Alison Telephone: 07946321678 Town: Liverpool County: Merseyside