Koi ponds can be bult indoors and can even thrive when designed correctly. Indoor environments allow for more control over temperature, water quality, and protection from predators or extreme weather. This makes them especially appealing in regions with harsh winters or unpredictable climates.
Indoor ponds can range from simple setups in basements or sunrooms to elaborate displays in commercial or residential spaces. Proper planning is very important, including ventilation to manage humidity, sufficient lighting, and a robust filtration system to handle the waste koi produce. Space should be ample enough to accommodate the full-grown size of the fish, as koi need plenty of room to swim and grow.