Your Polypterus Collection
spartan,
You've got quite a collection of polypteris there. I've got one Ornatippinis that I've had since 1997. I have no idea how long they live. Hopefully they will live as long as humans. He seems to be a very responsive fish. I would almost daresay probably intelligent.
I went through years of growing fish out, and then either trading them away or giving them back to the dealer. But, I get the impression that this one has intelligence. I did not want to take him back to the dealer and then have them put him in a tank with fish that would kill him. That's what they did to my Orange Pike, Buttikoferi, and maybe my Five-Spot Jewel. It made me so sick when I saw my pike bigger, but obviously not doing well in their huge display tank. I wanted to spare my bichir that, althought I got bored with him many times. So, he has been a constant pet through 3 house relocations.