For proper Koi health, a Koi prefers to have water depths that are nearly 3 times deep as the Koi is long. The added water pressure of deeper water helps the Koi's internal organs mature properly. Also, a Koi's instinct is to "dive" when a predator attacks the pond. If the Koi can't dive beneath what ever is trying to eat it, the Koi's stress level rises to unhealthy levels. High stress results in lower immune systems, and lower immune systems lead to secondary illnesses and infections. Also, if the Koi can't "dive", it relies on its "speed" to get away from the predator. Since Water Garden Ponds are typically not very large in relation to the speeds a Koi can generate when fleeing a predator - collisions with the rocks and gravel occur. These collisions can result in immediate damage to the Koi, or even death. A Koi with damaged skin is then more susceptible to infections.

While Koi can and do live in tens-of-thousands of Water Garden Ponds around the world, the "odds" are stacked against them for long term survivability. So if you are interested in keeping higher valued Koi, but prefer the cosmetic "looks" of a water garden pond over a Koi pond, we suggest a Hybrid Pond™ - after all, that's why Russell Technologies™ invented the concept!
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