Heat olive oil in an 8 litre kettle. Add chopped onion and 3 cloves garlic; saute until onion is tender, 5 minutes. Add clam juice, undrained tomatoes, 0.75 cup water, orange peel spiral, salt, saffron, fennel seed, thyme, pepper and bay leaves; bring to boil. Reduce heat and simmer mixture, covered 30 minutes, stirring occasionally. Remove from heat and let cool, about 1 hour. Then refrigerate, covered, overnight. Next day, with sharp knife, cut the frozen lobster tails (shell and all) in half crosswise. Wipe cod and halibut with damp paper towels. Cut into 4 cm pieces or leave whole. Rinse sea scallops in running cold water; drain. Bring tomato mixture to boil. Add frozen lobster. Simmer, covered, 4 minutes. Add cod and halibut pieces; simmer covered 10 minutes. Add sea scallops over low heat, 5 minutes. Spoon bouillabaisse over garlic toast. You can substitute for different varieties of fish, if desired.