{
  "id": "6",
  "name": "银龙鱼",
  "category": "银龙",
  "scientific_name": "Osteoglossum bicirrhosum",
  "canonical_url": "https://www.arowanafish.cn/varieties/6",
  "machine_html": "https://www.arowanafish.cn/variety-geo/species/6.html",
  "machine_json": "https://www.arowanafish.cn/variety-geo/species/6.json",
  "machine_txt": "https://www.arowanafish.cn/variety-geo/species/6.txt",
  "image": "https://www.arowanafish.cn/mirrored-assets/baas-api.wanwang.xin/toc/image/preview/silver-arowana-fish-2510334f86.jpg",
  "gallery": [
    "https://www.arowanafish.cn/mirrored-assets/baas-api.wanwang.xin/toc/image/preview/silver-arowana-fish-2510334f86.jpg",
    "https://www.arowanafish.cn/generated-assets/fengshui/silver-arowana.png"
  ],
  "price_range": "¥500 起",
  "difficulty": "入门",
  "water_layer": "上层",
  "origin": "南美洲亚马逊流域",
  "origin_detail": "银龙来自南美大型河流和泛滥区环境，市场价格亲民，但成年体型和空间需求并不低。",
  "habitat": "上层巡游、捕食型鱼，擅长跳跃，需要长缸、缸盖和开阔水面。",
  "summary": "银龙鱼入手门槛低，但成长速度快，真正难点在空间规划、缸盖安全和长期水质维护。",
  "temperament": "适应性较好，幼鱼容易受惊，成鱼需要大空间保持游姿。",
  "adult_size": "70-90 cm，家庭缸常见 50 cm 以上",
  "tank_size": "长期建议 180-200 cm 以上",
  "water_quality": "24-30°C，pH 6.0-7.5，稳定水质即可",
  "diet": "鱼虾、昆虫、颗粒均可，注意避免只喂活食。",
  "compatibility": "可与体型接近且不咬鳍的鱼混养，但要防抢食和跳缸。",
  "selection_guide": "看背线、眼位、胸鳍完整、游姿和反应，幼鱼不要选过瘦或呼吸急促个体。",
  "risk_notes": [
    "跳缸风险极高",
    "空间不足容易掉眼和擦伤",
    "成长快，不能只按幼鱼尺寸选缸"
  ],
  "care_points": [
    "提前规划大缸",
    "必须加盖",
    "少量多次喂食",
    "注意掉眼风险"
  ],
  "professional_notes": [
    "银龙适合作为大型鱼入门，但不是小缸鱼。",
    "幼鱼期稳定喂食和低惊扰比追求快速长大更重要。"
  ],
  "parameters": {
    "适宜水温": "24-30°C",
    "pH": "6.0-7.5",
    "硬度": "软水至中等硬度",
    "建议饲养": "大空间",
    "观察重点": "体型、跳缸、掉眼"
  },
  "tags": [
    "南美龙鱼",
    "入门大型鱼",
    "缸盖"
  ]
}