鱼苗经一段时间的培育,当体长达到2.6～3.3厘米时,称为夏花。由于刚开始鱼苗在高密度条件下培育,成夏花后,随着鱼体长大,活动空间也要求逐渐增大,原池的水质和营养条件已不能适应鱼体需要。因此,对夏花鱼种需分池饲养和做好出塘准备。否则,不仅会减缓生长速度,而且会发生鱼病, Fish fry after a period of cultivation, when the body length of 2.6 to 3.3 cm, known as summer flowers. As the fry was cultivated under high density conditions, the water content and nutrient conditions of the original pond could no longer meet the needs of the fish as the fish grew up and the activity space increased as the summer flower grew. Therefore, the summer flower species need to pool and make good pond preparation. Otherwise, not only slow down the growth rate, but also fish diseases,