This is a rich, simple yet flavorful Thai curry. The Mahi Mahi cooks quickly to give a tender texture and to soak up the complex flavors of the bell peppers, spices, and coconut milk. The curry can be made as spicy as you like depending on how much curry paste you use.
The thickness of your curry will depend on your coconut milk. Chaokoh brand will give quite a thick curry, because of the added sodium metabisulfite. Trader Joe's coconut milk will give more of a soup-like texture. Thai Kitchen brand is in-between. All have delicious flavor!