If your lucky Steve you mite end up with a couple of jags that hold there own against him , mine managed to do this he still gets chased even now but defends his pipe till the death
Sounds like your jars gona be like mine Steve welcome to my world ( of loosing lots of fish looking for tankmates lol ) , turtles im thinking either your one of the lucky ones with a placid jar or your gona come home one day missing a jag hahaha hope this is not the case and they live together in harmony