One of the tanks in my fish room is a 77 gal housing 1 clown knife at 6'', a silver arowana at 8-9'' and a tiger shovelnose at 7-8''. I was thinking about keeping them in this tank for a while before up sizing, at this point they get along great. At what percentage do you think the TSN may make dinner out of either the CK or arowana, 100%,80%,50%,10% Thanks for any input.