On breeding goldfish is the most important amounts of water changes and water and I think. The ordinary goldfish 1 water 10l more.
Water often as good as and I think. This is because, without sudden changes of temperature stress and water is much likely to get sick from.
And with that water is much breeding water stain-resistant , and also disease are difficult to I think. Also water is much more fewer water changes of have fewer.
And amount of food water number of times a reorientation also depending on the 20l, is the ideal 30l must and I think.
Bait, give amount in about 1 minute eats 2 times in 1 day depending on weather and temperature adjustment has.
In this daily water changes of about one -third and engaged in all water once a week changes.
Also according to high and low temperatures and sunshine adjust the condition of bluish .
Because water changes and breeding of water is what you change in breeding or breeding status find that suits them, they have this water changes and breeding of water.