As much as I loved Bob, it's time for me to get a new fish. Bob lived in a 220 gallon, and did quite well in there. I was thinking of getting a baby black arowana. I adored Bob, and I have no desire to replace him with another silver, but a black arowana might be just what I need. He would probably have the tank all to himself, Bob did, and I don't have the money to feed another animal. Will a blackie be ok in that tank? I'd get it as young as I could find it (barring it having a yolk sack) and raise it to adulthood. Sound good?