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When goldfish breed, the male fish chase the females who dash around amongst the plants at the surface of the water. As they do this, the females release their adhesive unfertilized ova (Eggs) and these stick to the plants. The following male goldfish then release their milt (sperm) which is sprayed over and amongst the females ova. This results in the males "milt" comming into contact with the females "ova" resulting in the "external fertilization" of the ova.

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14y ago
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12y ago

External in bony fishes and internal in cartilaginous fishes .

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11y ago

amalyer

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9y ago

externally

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Q: Do goldfish fertilise internally or externally?
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