{"topic_id":"exotic_fish_diagnostic_approach","category":"exotic-pet-health","context":"---\ntopic_id: exotic_fish_diagnostic_approach\ncategory: exotic-pet-health\ntitle: \"Pet fish diagnostics — history and acid-fast staining for Mycobacterium\"\nlang: en\nsource: \"Merck Veterinary Manual — Fish Management (saved first-hand text)\"\nsource_file: pdf-raw/exotic-health/mvm_fish_management.txt\ndate_parsed: 2026-07-29\ntokens_estimated: 56\nverified: true\nverification: c1_substring\nsource_document: \"Merck Veterinary Manual — Fish Management (saved first-hand text)\"\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Pet fish diagnostics — history and acid-fast staining for Mycobacterium\"\n  url: \"https://www.merckvetmanual.com/exotic-and-laboratory-animals/fish\"\n  retrieved: \"2026-07-29\"\n  ref: \"first-hand Merck Veterinary Manual text\"\n  doc_type: \"official veterinary manual (EN)\"\n  needs_review: false\n---\n\n# Pet fish diagnostics — history and acid-fast staining for Mycobacterium\nVerbatim first-hand facts from Merck Veterinary Manual — Fish Management (saved first-hand text). Each bullet is an exact substring of the cited source and C1-substring verified (second-round health deepening, reusing saved Merck source).\n\n## Health facts\n- As with all species, a good history is critical to establish a diagnosis.\n- An acid-fast stain should be available for benchtop staining of granulomatous material which, when positive, is strongly suggestive of Mycobacterium .\n","sources":["exotic-pet-health — Pet fish diagnostics — history and acid-fast staining for Mycobacterium (retrieved 2026-07-29)"],"source":{"authority":"exotic-pet-health","title":"Pet fish diagnostics — history and acid-fast staining for Mycobacterium","url":"https://www.merckvetmanual.com/exotic-and-laboratory-animals/fish","retrieved":"2026-07-29","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual — Fish Management (saved first-hand text)","verification_file":"pdf-raw/exotic-health/mvm_fish_management.txt"},"source_document":"Merck Veterinary Manual — Fish Management (saved first-hand text)","source_file":"pdf-raw/exotic-health/mvm_fish_management.txt","tokens_estimated":56,"generated_at":null,"tip":"Use /api/v1/topics to discover more topics. /api/v1/nutrient for precise single-point queries. /api/v1/cross_compare for 2-3 standard comparisons."}