{"topic_id":"exotic_fish_parasites","category":"exotic-pet-health","context":"---\ntopic_id: exotic_fish_parasites\ncategory: exotic-pet-health\ntitle: \"Aquarium fish parasitic disease — protozoa and external parasites\"\nlang: en\nsource: \"Merck Veterinary Manual — Aquarium fish parasitic disease — protozoa and external parasites\"\nsource_file: pdf-raw/exotic-health/mvm_fish_management.txt\ndate_parsed: 2026-07-28\ntokens_estimated: 0\nverified: true\nverification: c1_substring\nsource_document: \"Merck Veterinary Manual (professional veterinary reference)\"\ncitation:\n  authority: \"Merck Veterinary Manual\"\n  title: \"Aquarium fish parasitic disease — protozoa and external parasites\"\n  url: \"https://www.merckvetmanual.com/exotic-and-laboratory-animals\"\n  retrieved: \"2026-07-28\"\n  ref: \"\"\n  doc_type: \"professional veterinary reference\"\n  needs_review: false\n---\n\n# Aquarium fish parasitic disease — protozoa and external parasites\nVerbatim first-hand facts from Merck Veterinary Manual (professional veterinary reference). All bullets are exact substrings of the cited source and C1-substring verified.\n## Parasitic disease\n- Unbuffered MS-222 should never be used; it is very acidic which can not only damage fish epithelium but can also cause some parasites to detach from the fish.\n- Tissue should be examined for morphology and for the presence of parasites, bacteria, or fungal elements.\n- Wet-mount examination of fish tissues is crucial for diagnosis of most parasites.\n","sources":["exotic-pet-health — Aquarium fish parasitic disease — protozoa and external parasites (retrieved 2026-07-28)"],"source":{"authority":"exotic-pet-health","title":"Aquarium fish parasitic disease — protozoa and external parasites","url":"https://www.merckvetmanual.com/exotic-and-laboratory-animals","retrieved":"2026-07-28","ref":"","doc_type":"official PDF","source_document":"Merck Veterinary Manual (professional veterinary reference)","verification_file":"pdf-raw/exotic-health/mvm_fish_management.txt"},"source_document":"Merck Veterinary Manual (professional veterinary reference)","source_file":"pdf-raw/exotic-health/mvm_fish_management.txt","tokens_estimated":221,"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."}