{
  "id": "13",
  "name": "过背金龙",
  "category": "金龙",
  "scientific_name": "Scleropages formosus 金色品系",
  "canonical_url": "https://www.arowanafish.cn/varieties/13",
  "machine_html": "https://www.arowanafish.cn/variety-geo/species/13.html",
  "machine_json": "https://www.arowanafish.cn/variety-geo/species/13.json",
  "machine_txt": "https://www.arowanafish.cn/variety-geo/species/13.txt",
  "image": "https://www.arowanafish.cn/mirrored-assets/material-image.wanwang.xin/1779916553546515/WS20260406092836000001/92d3c4c1-d07a-4ee5-923e-f1b4d8ea941e-3be6dbaaf0.jpg",
  "gallery": [
    "https://www.arowanafish.cn/mirrored-assets/material-image.wanwang.xin/1779916553546515/WS20260406092836000001/92d3c4c1-d07a-4ee5-923e-f1b4d8ea941e-3be6dbaaf0.jpg",
    "https://www.arowanafish.cn/mirrored-assets/material-image.wanwang.xin/1779916553546515/WS20260406092836000001/91edd3cc-01e9-4201-aec6-b0eda51d1d58-290c24f988.jpg"
  ],
  "price_range": "¥10,000 起",
  "difficulty": "进阶",
  "water_layer": "上层",
  "origin": "马来西亚、印尼",
  "origin_detail": "过背金龙以背部鳞片金色覆盖和金质延展作为核心识别点，个体差异较大。",
  "habitat": "上层巡游型鱼，需要长缸、稳定水质和足够回游空间。",
  "summary": "过背金龙兼顾观赏价值和养护可控性，是金龙玩家常见进阶选择。",
  "temperament": "适应性相对好，但仍需要成熟过滤、规律换水和稳定灯光。",
  "adult_size": "55-70 cm",
  "tank_size": "150 cm 可作过渡，长期建议 180 cm 以上",
  "water_quality": "26-30°C，pH 6.5-7.5，重点保持氨氮、亚硝酸盐为 0",
  "diet": "鱼虾、昆虫和高品质颗粒搭配，幼鱼少量多餐，成鱼控制频率。",
  "compatibility": "可谨慎混养魟鱼、虎鱼等不同水层大型鱼，但要先评估缸体和过滤负荷。",
  "selection_guide": "观察背部覆盖、鳞片整齐、眼位、须形、尾柄力量和开口呼吸情况。",
  "risk_notes": [
    "幼鱼成长阶段容易因环境波动掉状态",
    "混养时抢食会导致体型失衡",
    "缸体过短会影响巡游姿态"
  ],
  "care_points": [
    "维持稳定灯光",
    "避免过度投喂",
    "观察鳞片完整度",
    "保持大空间游动"
  ],
  "professional_notes": [
    "过背表现随年龄、体况和灯光变化而变化，选鱼要结合血统、体态和后期成长空间。",
    "金龙缸背景、灯光和水清澈度会影响观感，但不能替代水质稳定。"
  ],
  "parameters": {
    "适宜水温": "26-30°C",
    "pH": "6.5-7.5",
    "硬度": "中等偏软至中性",
    "建议饲养": "单养或谨慎混养",
    "观察重点": "金质、背部覆盖"
  },
  "tags": [
    "金龙",
    "进阶",
    "过背"
  ]
}