{
  "id": "koi",
  "name": "锦鲤",
  "category": "锦鲤",
  "scientific_name": "Cyprinus carpio 锦鲤品系",
  "canonical_url": "https://www.arowanafish.cn/varieties/koi",
  "machine_html": "https://www.arowanafish.cn/variety-geo/species/koi.html",
  "machine_json": "https://www.arowanafish.cn/variety-geo/species/koi.json",
  "machine_txt": "https://www.arowanafish.cn/variety-geo/species/koi.txt",
  "image": "https://www.arowanafish.cn/generated-assets/fengshui/koi.png",
  "gallery": [
    "https://www.arowanafish.cn/generated-assets/fengshui/koi.png",
    "https://www.arowanafish.cn/mirrored-assets/baas-api.wanwang.xin/toc/image/preview/koi-carp-47ee47f05f.jpg"
  ],
  "price_range": "¥200 起",
  "difficulty": "进阶",
  "water_layer": "中层",
  "origin": "日本选育体系，基础种源来自鲤鱼驯化品系",
  "origin_detail": "锦鲤是池养观赏鱼代表，品系按红白、大正、昭和、黄金、白写等花纹和质地细分。",
  "habitat": "更适合户外池、过滤池或大型地缸，强调大水体、溶氧、沉淀和稳定温差。",
  "summary": "锦鲤不是普通小缸观赏鱼，核心在体型、花纹、质地、游姿和池水管理。",
  "temperament": "群游性强，互动性好，食量和排泄量大。",
  "adult_size": "40-80 cm，优质池养个体可更大",
  "tank_size": "长期建议鱼池或大型地缸，重视过滤仓和溶氧",
  "water_quality": "15-25°C 生长活跃，pH 7.0-8.0，硬度和碱度要稳定",
  "diet": "季节性投喂锦鲤粮，低温减少或停止投喂，避免水温低时高蛋白喂食。",
  "compatibility": "适合同类群养，不适合与热带龙鱼共缸。",
  "selection_guide": "看体型骨架、皮质、红白边界、游姿和鳍条完整，幼鱼花纹要考虑成长变化。",
  "risk_notes": [
    "池水过滤不足会快速积累污染",
    "温差剧烈易出问题",
    "低温喂食不当容易肠胃负担"
  ],
  "care_points": [
    "建立沉淀和生化过滤",
    "保持高溶氧",
    "按水温调整投喂",
    "定期观察体表和鳃部"
  ],
  "professional_notes": [
    "锦鲤管理重点在鱼池系统，不只是鱼本身。",
    "清水不等于好水，氨氮、亚硝酸盐、pH 和碱度都要记录。"
  ],
  "parameters": {
    "适宜水温": "15-25°C 活跃，低温需减食",
    "pH": "7.0-8.0",
    "硬度": "中等至偏硬且稳定",
    "建议饲养": "鱼池或大型地缸",
    "观察重点": "体型、花纹、皮质、水质"
  },
  "tags": [
    "池养",
    "群游",
    "过滤系统"
  ]
}