Everything would work out, only prob. would be your TSN. They grow sooo much faster than almost any fish I know of, and are capable of swallowing the unthinkable. Top that off with the fact that pikes are torpedo shaped...makes for a bad combo. Best bet is to keep them seperate from the TSN...or at least keep the pikes a couple of inches larger than the TSN...give them a chance to keep a head for a while at least.