Description: breeding of goldfish should be done in separate aquariums, both for the parents and fry. Learn the method from this guide.
If you want to have successful goldfish business, you must start with breeding. For home fish owners, breeding of goldfish can be a little difficult. These fish are known for eating their own eggs sometimes, and their mating habits can be confused with fighting. Learn the best way to breed these fish with an extra breeding aquarium at home.
How to Prepare Goldfish for Breeding
If you want your goldfish to breed, make sure you put them in an ideal tank from the start. Your tank must have at least 50 to 70 gallons of capacity, with proper filtration system and 21 degrees Celsius of temperature. Feed them with protein-rich pellets and live foods to ensure health.
Wait until a male and female fish look ready to breed (usually after they turn one year old). The male usually grows white spots on the fins, and the color becomes richer. The female becomes fatter and rounder than usual. The male may also act more excitedly around the female, often nudge her and nip at her belly.
When these signs appear, move the female to a separate tank. This tank can be 10 to 20 gallons of capacity, with the same setup as the main tank. The temperature must range between 20 and 23 degrees Celsius. Add some underwater plants and spawning mop, which will become the place for the female to lay her eggs.
What to Do after Goldfish Lays Eggs
Goldfish lay numerous eggs on the plants (or spawning mop), and sometimes they eat their own eggs. Once you see the eggs, move the female back to the original aquarium. If you see dark-colored eggs, you can remove them. Dark eggs have a low chance of hatching, so you can increase the spawning success rate by keeping the light-colored eggs.
When the eggs finally hatch, you will see the fry staying at the bottom of the tank. They eat the yolks from their egg sacs as the first nutrition sources, so you don’t need to feed them immediately. You can start feeding the little fish with special foods for fry. You can also create protein mix by mixing a piece of boiled egg yolk with some water from the spawn tank. Shake it well until the water becomes murky and add several drops of it to the spawn tank.
Once the little ones grow into big, healthy fish, you can introduce them to the main aquarium. You can also buy a new aquarium for the new batch (especially if you want to have a goldfish business). Breeding of goldfish requires patience and observation, but seeing the new babies hatching will be satisfying.