SO, your predatory fish now live with various types/sizes of fish which they formerly ate, and don't eat them?I would disagree whole heartedly. Most predatory fish that I get I powerfeed them on a steady supply of live fish up to a certain size. Depending on the species that will determine what size. After which I switch themover to other foods. Even being fed 100s of feeders per week, after switching prodided some common sense is used in stocking there are usually no problem.
It's also not like he was raising his rtc on feeders. It was doing what rtcs do, eat. It just so happenned that it was it's tankmates that were eaten.
or maybe bigger fish.
Good luck to the OP, because this RTC is fully grown. right.
Attempted reasoning here is pointless.