How Often Do Goldfish Lay Eggs, Breed or Spawn?


If your wondering on how often do goldfish breed, lay eggs or spawn it all depends on the water temperature. Water temperature? Yes the water temperature is what determines whether or not the goldfish are ready to breed or spawn along with the age of this fish of course. First off the goldfish needs to be sexually mature or old enough to breed and the eggs within the female goldfish need to be mature as well.

Your pretty much safe to say that goldfish will breed between 2-3 times a year and maybe more depending on where you live. You see in a warmer climate like Florida it may be possible to have more goldfish spawnings then someone living within Canada who only have a short summer. The temperature of the water is what controls the goldfish breeding process. Every day that goes by that the water temperature is above 15 degrees celsius counts towards your 1000 degrees celsius schedule. For example every days that the water temperature is over 15 degrees celsius counts until you reach 1000 degrees celsius days. I will explain more below.

How Often Do Goldfish Spawn, Breed and Lay Eggs?

Lets say that you have 10 straight days the water temperature in your fish pond or aquarium is 20 degrees celsius then this would equal 200 degrees celsius ( 10 x 20 = 200) that means if it stayed like that for 50 straight days at 20 degrees celsius water temperature then that would equal the 1000 degree days that goldfish need to go through in order to be ready to breed. After 1000 degree days the eggs within the female goldfish are mature enough and the chances of a golfish spawning is any day now.

If you keep track of the daily water temperature daily will be your best way at determining how soon or often your goldfish will be breeding or laying eggs. Remember the male goldfish needs to be sexually mature enough too. If your interested in breeding goldfish then it’s best to learn as much as you can. Throughout my blog you will find more information on breeding goldfish . You’ll learn all about how goldfish spawn come breeding time through the links below.

Sincerely,

Jamie Boyle
The Goldfish Guy
“Helping Goldfish Owners With Advice, Fish Care and Fish Medication Treatments for Goldfish Diseases, Illnesses and Parasites”

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5 comments on “How Often Do Goldfish Lay Eggs, Breed or Spawn?

  1. kensingtongirl on said:

    How often does a TANK LIVING Goldfish lay their eggs. For being in a 70 degree room ferinhite, will they ever lay eggs?Do I need to add a water heater to make them breed?

  2. Had 3-4 foldfish in my new glass bowl….with no air pump— learnt my lesson:-(( and gradually one by one all died …no idea why… changed water (1/2 bowl) everytime one died—- now all have gone except the cleaner fish–black– looks like a catfish-(Around 1.5 inches -don;t know the name— why are they dying —can u help so the next pair of fishes i get is fine and well taken care of —p lpl pl. help–Thanx- Jay

  3. Have a goldfish bowl..around 8 inches mouth.. with 4 fishes all died 1 per day -For last fish introduced a aerator but in vain… now my bowl has only 1.5 inch long cleaner fish….pl help for my next purchase of goldfish pair– want to take really good care of them….kids are sad….am in india now –here the temp is just like florida…. pl pl pl help…thanx- jayp.s. had a pair back in u.s. and thye lived for a good 8 months as long as i was there…then gave them away to a friend before i moved….one more question — Can i have a cleaner fish along with the pair of goldfish in a bowl ..or should i leave them alone….??Thank u

  4. latika on said:

    hi thr,,,, i just happend to c this post,,, i guess the fishes died due to over crowdin,, try keeping two small sized fishez… they cud surely survive,,, n neva change water completely,,, retain half or three fourth of it,,, n change the water when it gets dirty,,, fishes needs lotzaa space,,, try gettin a small sized aquarium thn u can surely put two gold fishes in it,,, not more than two!

    • The Goldfish Guy on said:

      Yes the #1 reason that goldfish get sick, catch fish diseases or die is a result of overcrowding. Many people often make this mistake when getting into the hobby. When you have more tank space available for your fish, maximize filtration, have adequate aeration and perform regular water changes will help ensure success with taking care of goldfish. Knowledge is the key to success!

      Sincerely,

      Jamie Boyle
      The Goldfish Guy

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