One of my goldfish is about to lay seeds, should I isolate it from the other fish?

Yes, it must be isolated, otherwise this wave of fish roe will be scrapped, and it is difficult for fish roe to survive in the natural environment of the jungle.

Separate the goldfish from the eggs and keep it in light for 6-8 hours a day to promote algae growth in the water. After two days, observe whether the fish eggs have eyelids, which are black spots in the middle of the eggs, and fish out the fish eggs without black spots to avoid mildew in the water quality. Maintain the water temperature, and after 7 days, the eggs hatch into small fish, about 4-6 mm, needle-pointed, and continue to maintain light to ensure oxygen capacity.

After another three days, the small fish should be able to swim flat, and when they are all able to swim flat, they will be fed with less water to feed the fry. If the feed is sufficient, after 10 days the fry can be fed in powdered form.

Quickly remove the goldfish from the tank and put it in another tank, otherwise the small fry will be devoured by it.

Remember, it's the big fish that are fished out, not the fry. The small fry are very weak, and if they can't withstand fishing, even if they are fished out, they can't survive, and even if they don't die, they will be mostly gigmatized when they grow up.

However, goldfish are not viviparous fish, and they should not give birth to small fish. After spawning, goldfish can hatch small fry in 3 4 days after 18 to 22 degrees.

Small fry rely on "self-bringing" nutrition for two or three days, so they do not have to be fed. Two or three days later, when you see that the small fry are in a foraging state, then wrap the boiled egg yolk in fine gauze, twist it lightly by hand in the water and shake it slightly, so that the egg yolk slowly oozes out for the fry to eat. Pay attention to twice a day, and the amount should be small so as not to pollute the water quality and cause the death of small fry.

When the fry can swim to the surface, they begin to feed the small fish insects (water lice). Small fish worms are small worms that are filtered out of fish insects that are fished out with gauze or plastic mesh sieves. When it grows to a centimeter or two long, it can be fed to ordinary fish insects.

Answer: Question added:

The water in the breeding tank should be prepared in advance, and it should be relatively clean, and there should be no moss, especially filamentous algae, which will entangle the juveniles. Bait and presate are susceptible to spoilage, leading to deterioration of water quality, breeding for pathogens and endangering the lives of juveniles.

In fact, the broodstock must be rested in the breeding tank, do not disturb, it is best to put more aquatic plants, the broodstock give birth to small fish directly out of the rest, pay attention to especially the female fish reproduction is afraid of lack of oxygen may suffocate directly, so the management of the breeding tank should be strict.

Brother Pengfeng is very detailed. I'll add.

First, what do you use to attach the eggs? Goldfish eggs are sticky eggs, and I recommend using sterilized brown flakes, and of course, I used artificial insemination.

Second, place the eggs in an aerated aquarium with an aeration head and a heating rod.

Third, it is the opening bait of the fry, which is good with small bloodworms, but it is really not good, and the egg yolk water filtered with yarn silk.

Hehe, you will succeed if you put your heart into it.