i'm with CFC and Nmonks all the way, these guys is the most knowledgeable persons ive probably seen on here,
and i have to agree just cause australians wanne call them saratoga's dosnt mean thats what they are, theres too much variation with fish now.
ive been browsing fish forums and websites for years now and this is honestly the first ive heard the name saratoga!
i just hear jardini's or australian arowanas.
yes there fins are different and they arent from south america but there are 2 knifefish Notopterus Notopterus from asia, and Xenomystus Nigri, one is lacking a dorsal fin and the other isnt, besides this they are more or less identical. but point being they are both knifefish! despite distribution being on two different continents. yes they are a different genus but we dont give them a regional african or south asian name because things like that cause confusion.