Fly river turtle in predator pond, safe?

[Jdk]

Hi, im just going to be straightforward because i need to be sure. Im about to get a 5 cm frt to be placed in a 400 gal pond with all 10 cm arowana,oscar,bichirs,plecos,tinfoilbarbs,hujeta gars, alligator gar, p bass. Im buying a small one because ive only ever heard about frt bullying fishes and never the opposite, correct me if im wrong. Water parameters and enviroment are suitable for the frt after further research. Will it be ok?

 

[Bsixxx]

Everyone on here has them in their predatory tanks. I'd be worried about that alligator gar growing too fast and trying to take a nab at it in the future.