Sexing Goldfish Archives - Goldfish Care Information Diseases & Treatments

Are My Goldfish Pregnant?

One of my readers asked me a question ” How To Tell If My Goldfish Are Pregnant” and I decided to write a post about this. Many people often get very interested in goldfish breeding and wonder are my goldfish pregnant and are there going to be little baby goldfish. What people first need to realize is that goldfish don’t become pregnant. Goldfish are not livebearers, meaning that they don’t have live young. Goldfish are called egg layers meaning that when goldfish breed during the spawning process eggs are released and fertilized by the male and then the eggs hatch into young fry a few days later. Seeing goldfish breed is very neat and interesting to see the whole process in motion.

So goldfish don’t become pregnant but you can tell the differences between males and female goldfish by viewing them from above. In order to tell when and if your goldfish will breed involves proper planning, recording temperatures, sexually mature goldfish and knowing when the eggs are ready and matured inside the female goldfish. The eggs need to be fully developed and ready in order for successful breeding to occur.

If you want to learn more about goldfish breeding visit some other posts I’ve made on breeding and raising young goldfish.

Sincerely,

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

Sexing Goldfish- Differences Between Males and Females

Goldfish sexing is what most aquarium or fish pond hobbyist would like to know sooner or later. Goldfish breeding is the answer why they want to know the differences between male and female goldfish. As people get more into their hobby they would eventually like to see their fish breed. Here I am going to tell you and show you how to tell if your goldfish are male or female.

How To Tell The Differences Between Male and Female Goldfish

Female Goldfish

1. Females are generally bigger then the males and are they’re more plump. The reason for this is that there abdomen is all full of eggs when it comes time to breeding.

2. Females abdomen is also more soft and squishy then of the males.

3. They also have rounded and shorter pectoral fins.

4. Females also have a larger rounder anal opening with it slightly protruding as well.

Male Goldfish

1. Male fish develop breeding tubercles on their gill plates which are most commonly mistaken for the goldfish disease commonly known as Ich. They also get these small white pimple like spots on their outer ridge of their pectoral fins as well. These breeding tubercles appear during spawning time showing they’re ready to breed.

2. Males also have larger longer pectoral fins as well. The pectoral fins are the ones right underneath their gills.

3. They also have a much firmer abdomen then the females.

4. Males have a smaller more oval anal opening then the females.

5. Males are more torpedo shape then females.

These are how to tell the differences between the sexes of male and female goldfish. Here is one of the biggest ways that you can tell as well is when breeding begins to happen you will see the males chasing the females. This is a sure way to tell the differences whether it’s a boy or girl. It’s much the same as real life dating the men usually chase the women 🙂 I will later add some goldfish photos of breeding tubercles of males and pictures of females as well for everyone to see the differences.