How Big Do Goldfish Get Before Spawning, How Many Eggs They Lay at a Time, and a Detailed Guide to Raising Them

Goldfish are the earliest breed in the history of ornamental fish in the world. They are easy to keep, have unusual shapes and brilliant colors, and are generally golden yellow. So do you know how big goldfish get before spawning? How many eggs can they lay at a time? How do you raise them? According to available information, goldfish usually mature and spawn at 1 year of age, meaning they can reproduce 1 generation per year. If the temperature is raised in winter and feeding management is strengthened, goldfish at 7-8 months of age can also spawn early in the severe cold of winter; they do not necessarily have to reach 1 year (12 months) of age before they can spawn and reproduce. Goldfish can spawn multiple times during the breeding season. In the places reached by the light, small fish will hatch in about a week.

How many eggs can a goldfish lay at a time?

The number of eggs goldfish lay each time varies; a robust goldfish can lay up to several thousand eggs at a time. They can spawn 3 to 4 times in one spawning season. The second spawning usually produces the largest number of eggs, while the first and last produce fewer. In terms of age, goldfish that are young or old lay fewer eggs. Small-bodied goldfish spawning for the first time also lay fewer eggs.

How to raise young goldfish

1. Young goldfish cannot tolerate temperature changes of more than 1°C, so the tank for raising fry should be placed in a warmer and stable location. Also, fry are very sensitive to water quality; if the water used for a change differs greatly from the original water, the small fish may die, so do not change the water for fry too frequently.

2. Fry have poor swimming ability, so the water flow must not be too strong.

3. There are several feeding methods:

a. Egg yolk: you can crumble it and wrap it in gauze, then shake it around in the fish tank when feeding. You can also put a small portion into the water.

b. Feed: if the feed for adult fish is solid pellet feed, you can crush it and put it into the water; the feed will soften after soaking, and the small fish can eat it.

4. Fry have weak constitutions; once illness is found, treat it immediately, and do not use too large a dose of medication.

Also be careful to clean up feces and leftover food in time, so that the water does not spoil when summer temperatures are high.