? To judge whether the goldfish eggs are fertilized successfully, you can judge by observing the appearance five hours after the goldfish lays eggs. Successfully fertilized eggs appear transparent on the outside, and the outline of the small fish inside can be seen faintly. Unfertilized eggs are milky white in appearance, and the difference between them and fertilized eggs is quite large, which can be directly distinguished.
When goldfish first lay eggs, breeders can't tell whether they are successfully fertilized or not, and they need to wait for about five hours to tell. After the identification is completed, the unfertilized fish eggs should be cleaned out of the fish tank in time to avoid polluting the water quality and affecting the normal hatching of the rest of the fish eggs.
goldfish after spawning? After goldfish spawning, breeders should isolate them from their eggs at the first time, so as to avoid the situation that goldfish eat their eggs as food. In addition, after the isolation of adult fish, the water in the fish tank should be changed, because after the reproduction of goldfish, a large amount of semen and unfertilized eggs in the water will cause water pollution, which is not conducive to the hatching of eggs.
In addition, breeders should also supplement nutrition to parent fish in time, and it is better to feed them some live bait, because it is rich in protein, which is helpful to the recovery of physical strength. Just remember to disinfect the food before feeding, so as not to damage their health.
