In a separate pot, start boiling water and cook the pasta. Reserve a little pasta water when draining the cooked pasta.
While waiting for pasta water to boil, sauté seafood in olive oil over medium heat with some of the fresh garlic, salt and pepper.
Once cooked through, remove the seafood from heat and set it aside in a bowl. Save all the seafood liquid / juices from the pan as well, in a bowl.
Sauté the optional sliced zucchini in olive oil in the pan. Remove from heat and let the zucchini join the seafood in a bowl.
Sauté the remaining fresh garlic in olive oil over low-medium heat. Once fragrant, add the can of diced tomatoes and tomato paste, and season with salt, pepper, and sugar to taste.
Stir in the reserved seafood liquid (from sautéing the seafood earlier) and a dash of fish sauce. Bring to a low simmer for at least 10 minutes, adding the pre-cooked seafood and zucchini back in at the end.
Toss the cooked pasta into the sauce pan until coated, adding in a little pasta water if needed.
Garnish with grated parmesan cheese, optional fresh basil, and serve hot!