Wash squid with cold water, remove clear tough rim and stomach from the squid tubes, rinse then cut squid into bite size pieces.
Boil water and salt in a small pot, add the squid when water boils, stir a couple minutes and pour into a colander to drain, do not overcook the squid. Set aside
In a small bowl, mix hot water with sugar till sugar dissolved.
Add lime juice, fish sauce and hot chili peppers together, mix well and set aside to cool.
In a large bowl, mix the mango with the pepper, onion, squid, and fresh herbs. Pour the fish sauce over, stir well and garnish with the peanuts.