Mariscada Aka Caldo De Siete Mares

Name: Mariscada Aka Caldo De Siete Mares
Ingredients: 2 lbs catfish (whole, cut into 3 inch peices with bones left in); 1 lb shrimp (shells and heads left on); 1⁄2 lb baby octopus (cleaned); 1⁄4 lb squid (cleaned and cut in peices); 1⁄4 lb green mussels (I use the frozen kind); 4 small blue crabs; 1⁄2 white onion (cut in thirds); 1 tomatoes (quartered); 1 bunch fresh epazote (or cilantro); 1⁄2 bunch fresh cilantro (minced); 1⁄4 bell pepper; 3 fish bouillon cubes; 4 shrimp bouillon cubes; 8 cups water; 1 tablespoon butter; 1 lime, juice of; salt