Place the tilapia in a medium bowl and mix with the orange, lemon and lime juices.
Cover with plastic wrap and refrigerate for at least 20 minutes or up to 1 hour.
Drain the tilapia, discarding the marinade, and pat it dry with paper towels.
Place it in a clean bowl, and if not serving immediately, cover with plastic wrap and refrigerate until you’re ready to serve or up to 1 hour.
Just before serving, stir in the soy sauce, rice vinegar, onions, mangos, jalapenos and cilantro into the tilapia.
Toss to coat and serve immediately.