Can a tsn live with a fire eel or will the eel end up being eaten? What about clown knives, a silver aro,tinfoil barbs,pangasius catfish, orange pike cichlids, Senegal bichir, clown loaches, sun catfish? What is the smallest size of fish you would keep a tsn with?
The TSN will get big enough to eat everything else on your list. It is also going to grow so fast that it might eat the 3 listed above if you try to grow them together. If started out as adults the 3 above should be OK but the clown knife still might get eaten. In the end a TSN is going to be at least 3 feet and if it can be swollowed it will be.