Preheat oven to 375 degrees. Sprinkle both sides of halibut with salt, pepper and paprika.
Place halibut in a buttered shallow baking dish and sprinkle with garlic, parsley and bread crumbs. Place lemon slices on fish and add water almost to top of fish.
Bake uncovered 20-30 minutes until halibut is firm and crumbs are golden brown.
Remove lemon slices, dot with butter and place under broiler until browned. Garnish baked halibut with thin lemon slices.