It is necessary to ensure good water quality. It is best to use an oxygenator to catch the water and turn it on for 24 hours
The upper filter can be turned on for 2 hours in the morning and 2 hours in the evening
Mainly, it is about the depth of water. For Ryukin under 10cm, you need to use a depth of water of about 35 meters
Anywhere over 10cm, you need to use a depth of water of 40-45
A larger one needs to use a depth of 50 meters. p>
For larger fish, use a depth of 50 meters. Only when the water depth is deep enough can the Ryukin grow to a good size
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