Personally, I like arowanas, so I have a list of new arowanas that can be added so there's more than just the silver arowana.
-Black Arowana
-Southern Saratoga
-Asian Arowanas
-African Arowana
-Green Arowana
I hope these fish are taken into consideration as I think these are very diverse fish and should be just a tad bit more appreciated. Thank you for reading, and have a nice day.