Rebuilding a Pond After Fish Losses

After losing all fish twice, focus on filtration before restocking.

• 20×10 ft liner → ~6×3 m pond. Need 1.5 m depth for koi.
• Without depth, stick to goldfish (1.2 m depth ok).
• Max 1 large koi per 1,000 L with good filtration.
• Shade sail helps control temperature and debris.

Invest in a proper filter system. Koi need 10,000+ L and robust biofiltration. Start small, test water, then add fish slowly.