Care of hatchlings

CARE OF HATCHLINGS 
  • After the hatching of the eggs, the hatchlings may be transferred to larval rearing tanks (or) kept in a cloth hapa for about 4 days, during which period they do not need to exogenous food, since they subsist on their own yolksac. It normally takes slightly more than three days for the yolksac to be absorbed. When hatchlings are laden with yolksac their movements are vertical. During the period, the mouth of the hatchling is developing but not yet fully formed. The hatchlings must be given appropriate food from an exogenous source a little before the total absorption of their yolksac. The vertical movement of the hatchlings changes into horizontal swimming movement when most of the yolksac is absorbed. As soon as that happens, the hatchlings must be given live and (or) artificial food.
Fish larva

A fish larva with yolk sac

Last modified: Thursday, 31 May 2012, 10:57 AM