1. Skin and cube salmon into small, bite-size pieces.
2. Prep your pico de gallo: Combine chopped cucumber, tomato, onion, and cilantro. (Reserve some chopped cilantro for garnish.) Season with salt and pepper.
3. Mix the cubed salmon into the pico de gallo.
4. When ready to serve, juice lemon and lime and mix into the fish mixture. Taste to check whether you need to add more lemon or seasoning.