Erik - I was trying to duplicate your biotope tank at home. You tank diagram doesn't match with the photos. Could you elaborate more on the rock placement. ;) Regards Mark Barnett Fish Link Central - Fish Link Exchange - AquaBid.com - FishBookStore.com - AquaRank.com - FishForums.com - AquaChat.com - AquaBoards.com ------------------------------------------------------------------------- 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.