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How hard is it to breed goldfish?

Miss Bad Wolf

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  • Regular Member

How hard is it to breed goldfish?

I never looked into breeding goldfish.  I do know that one goldfish is getting rather plump it seems.  Not sure if it is because that fish is lazy and likes to eat or if the fish is a she and waiting for something to happen.  My goldfish Charley likes to stay in one spot lately.  Summer likes to chase Charley.  I am starting to think Summer is not a bully, but actually Mr. Summers, which might explain the size difference between the other Moor fish I got at the same time.

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Can you get a picture from the side and from above? I'd also like you to fill out this form, I'm worried that there is something more going on

  • Test Results for the Following:
    • * Ammonia Level(Tank)
    • * Nitrite Level(Tank)
    • * Nitrate level(Tank)
    • * Ammonia Level(Tap)
    • * Nitrite Level(Tap)
    • * Nitrate level(Tap)
    • * Ph Level, Tank (If possible, KH, GH and chloramines)
    • * Ph Level, Tap (If possible, KH, GH and chloramines)
    • Other Required Info:
      • * Brand of test-kit used and whether strips or drops?
      • * Water temperature?
      • * Tank size (how many gals.) and how long has it been running?
      • * What is the name and "size of the filter"(s)?
      • * How often do you change the water and how much?
  • * How many days ago was the last water change and how much did you change?
  • * How many fish in the tank and their size?
  • * What kind of water additives or conditioners?
  • * What do you feed your fish and how often?
  • * Any new fish added to the tank?
  • * Any medications added to the tank?
  • * List entire medication/treatment history for fish and tank.Please include salt, Prazi, PP, etc and the approximate time and duration of treatment.
  • * Any unusual findings on the fish such as "grains of salt," bloody streaks, frayed fins or fungus?
  • * Any unusual behavior like staying at the bottom, not eating, etc.?
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  • 1 year later...
  • Regular Member

Unlike livebearers, such as goldfish, guppies can be difficult to breed. If you want to breed your Goldfish then you need to give them special care such as a big tank where they can find more spaces, good water, and proper nutrition.You can also need to notice water temperature changes. Before you stary goldfish breeding program you need to ensure that more spaces are available for them and their fries. If you don't have enough space for them then don't try to breed goldfish.

Edited by Robert Didomenico
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Breeding goldfish can be easier than not breeding goldfish.  Put a female and a male goldfish together and they will produce fertilized eggs.  They will do their best to gobble up the eggs.  You can increase the number of surviving fry by putting spawning mops or lots of floating plants in the tank before the fish begin to spawn.  Once you see eggs scattered around the tank, remove the adults.  Within a few days you will see tiny fry swimming around.

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