Goldfish breeding is not an easy task. Unlike livebearers, such as guppies, goldfish can be relatively difficult to breed in captivity.
In order to breed successfully, goldfish need their usual quality care – including plenty of space, good nutrition and excellent water conditions – plus specific temperature changes to induce breeding.
Before commencing a goldfish breeding program, always think about the amount of tank or pond space available to you. Do you have room for new fry in addition to your existing fish? If not, don’t try to breed goldfish!
If you do have enough space then read on to find out how to breed goldfish properly…
Goldfish breeding equipment
To start your own goldfish breeding program you will need the following equipment:
- Main tank or pond (of a suitable size and with filtration, etc, as usual)
- Fry tank (10 to 20 gallons)
- Plants (preferably live plants, though silk or plastic will do)
- Sponge filter and an air pump for the fry tank
- Spawning mop (optional)
And, of course, male and female goldfish!
You will need to buy slightly older fish or wait for your goldfish to reach maturity before you are able to determine which are male and which are female. Goldfish can usually be sexed from around 1 year of age.
Ideally, you would keep more males than females, as this increases the chance of a successful spawning. However, this depends on the space available to you and you may only have room for a single pair in your tank or pond.
Check out this site to see the differences between male and female goldfish.