Indoor Koi Pond: Complete Setup Guide (Cost, Size & Tips)
Home › Koi Pond › Indoor Koi Pond Indoor Koi Pond: Complete Setup Guide (Cost, Size & Tips) By Giovanni Carlo · Koi keeper & founder, Giobel Koi Center · Updated June 9, 2026 Quick Answer Yes — koi can thrive in indoor ponds with proper setup. The non-negotiables: 500 gallons minimum (1,000+ ideal), 3 […]
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