2013/9/1

仔魚期(2~3公分)的金魚飼養管理(Feeding and management of goldfish in larval stage (2~3 cm))

(1)在魚苗體內的卵黃囊營養沒有吸收完以前是不用餵飼料。
(2)金魚苗體內鰾沒有氣體以前,魚苗不會自由游動,應避免池水過度振動,以免魚苗自魚巢脫落孵卵池底後死亡。
(3)當魚苗鰾內有氣體,當魚體功能正常能自由游動後,就要及時取出魚巢,以免因魚巢上附著的未受精卵及黏液腐敗影響水質。
(4)當魚苗體內卵黃囊消失後,即可餵飼卵黃水(50g蛋黃調5kg水比例),通常每天上、下午各一次。
(5)餵飼期間應通過3~4次脫水,目的在於保持水質清潔及避免魚苗在水中密度過大,影響魚苗正常生長。
(6)脫水動作要輕,脫水方法是事先準備好清水,水溫最好相同,脫水時用盆把魚苗帶孵卵池上層乾淨的水一起舀起,再把盆浸入清水池內,讓魚苗從盆水裏游進清水池中。
(7)孵卵池下層污水全部清洗並進行消毒,以後每隔10~15天脫水一次。
(8)魚苗長至2公分左右,就可以考慮換水,但動作要輕,以免損傷魚苗,每次換水都要分散及篩選魚苗放入新池飼養,以免影響魚苗生長。

我想在會很多人的魚會生出魚苗,但對於照顧魚苗卻是束手無策,不一會就會死清光,魚苗那麼小的確很容易陣亡,我想在這兒與大家分享一下經驗,很多在大魚不是問題的在魚苗上卻是大問題。
1.魚苗不能與大魚一起飼養,不然就會被吃清光。
2.魚苗出生頭三天不用吃,三天後可吃剛出生的豐年蝦,但我建議大家到魚店買一些給魚苗吃的魚粉給魚苗吃,雖然大的比較慢卻有很多好處,一.易於控制 二.水比較清潔 三.沒有寄生蟲和細菌(除非你是自己孵化),待大一點才給它吃紅虫。
3.換水時水一定沒有氯氣,不能使用化學劑去除氯(例如:氯氣水、氯氣丸)魚苗吸了反兩反就會死亡,建議大家用盤放水兩天才用,如果清缸,生水會粘在魚缸周圍,魚苗吸了又會反兩反,要用沒有氯氣的水沖沖才使用。
4.魚苗那麼小其實可以不使用氣泵,不過使用氣泵會比較健康自然,如果缸子小可以張氣泵較弱一點放在缸角,氣泵太強會使魚苗不能進食和不斷翻騰致死。
5.水不應太深或太淺,8-10cm 水深應該差不多,太深會難以控制、太淺會影響魚苗發育。 
-魚友提供
1)      Before completing the absorbing of the yolk bag of the inside goldfish fries body, there is not necessary to have feeding.
2)      Before the swim bladder of the inside body of goldfish fries are gaseous, the fries would not freely swim. In order to avoid the goldfish fries fall off their hatch and death, the fish tank should avoid the over vibration.
3)      The water quality would become bad due to the rotten mucus of without having sperm eggs, which are stuck on the ovary. Therefore, as soon as the gaseous is setup, the fry body function is normal and fries are freely swimming, then the ovary must be taken out timely. 
4)      After the yolk bag of the inside goldfish fry body disappeared, the feeding should be starting with yolk water (50g egg yolk:5kg water ratio) by twice feeding daily (in the morning and evening).
5)      In order to keep the good water quality and density, 3~4 dehydration is necessary during the feeding period. 
6)      The dehydration should be slow.  Good dehydration method is; prepare the clean and good quality water with same temperature as original water.  Pick up the fries from original tank with a basin and slowly dip the basin into the freshwater to let them swim into freshwater tank.
7)      The dirty base and filthy water of hatch tank should be cleaned up and sterilized. Then, the dehydration should be done 10 ~ 15 days a time.
8)    When the fry body has about 2cm long, the water changing should be considered. But, the movement should be very slow to avoid the injury of fries.  Every water changing should be dispersed and sieved out the fries, then put them into new tank to avoid the influence of fries growth.
Many people will have goldfish born fries, but most people would be felt quite helpless how to care the fries. And, most of the fries would be totally death since the fries are very tiny and frail.  Because, many fries would cause problem what you have never seen on mature goldfish.
 1) Goldfish fries are not appropriate to raise with larger goldfish, the larger goldfish would eat out all fries.
 2) Not necessary to feed fries in the beginning of three days, after three days, there is necessary to feed fries with new born shrimps. Recommended to purchase the fishmeal for feeding fries, this way you can control the water quality in the best and the water would look clean, the parasite worm and bacteria would also be cleaned. After the fries have some growth, they are appropriate to be feeding red worm.
 3) The chlorine should not be contained when you change water.  There is not appropriate to use chlorine remover pellet or water, because, if the fries inhale this kind of chemical, they would be death.  Recommended to use the basin kept the water two days for fries, and use the non-chlorine water to clean the tank.
 4) Goldfish fries are too small and not necessary to have air pump, but if the air pump is available for them, there might be natural environment and fries are healthier.  However, the stronger air pump would let fries have difficult eating and the continuous tucking dives, then death. Recommended to have small air pump at the corner of fries tank.
 5) 8-10cm deep water in the tank is recommended. The deeper water or shallower water is not appropriate for goldfish fries. The deeper water would be difficult to control, the shallower water would be effected to the their growth.
 If there are any inappropriate issues, please do not hesitate to advice and have discussion. Thank you!
土佐金仔魚
蘭壽仔魚 

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