Gut and clean all the fish. Fillet the fish with bone and cut the squid and octopus into pieces while reserving the heads and the bone.
Bring 6 qts. water to a boil in a large pot: add the tomatoes, the fish bones and heads, including the shrimps' heads. Cook for 2 hours, then cool and pass through a fine sieve. Bring this poaching liquid back to a simmer and start adding the fish, one at a time, in order of cooking time. First the squid or octopus, then the scorpion fish, the shrimps, turbot, St. Peter's fish and the mullets. Cook till all fish is done.
Prepare a soffritto with garlic and parsley, add to the fish stew and remove from heat. Finish with lemon juice, place in a large serving platter and serve with toasted country bread.
Note:
There are as many variations and as many names to this preparation as there are church bells. Just to mention a few: brodetto, caciucco, ciuppin. The type of fish added also varies; some do not add mollusks, some add bivalves, some claim that at least 13 or 14 different types of fish should be used, others use only one type.
