Tag Archives: fins

fins

How to Sex a Goldfish

How to Sex a Goldfish

Video Link: https://www.youtube.com/watch?v=tmKkuf9_5CU It can sometimes be tricky to tell the difference between male andfemale goldfish, but there are a few different indicators you can use. Taken individually, each one can be a little unreliable, so it’s best to consider them as a whole when trying to determine the sex of yourfish.  And of course, the…
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Goldfish External Anatomy

Goldfish External Anatomy

(click image for larger view) BodyFor fancy goldfish, the body shape is much shorter and deeper than the typical torpedo shape seen in most fish.PeduncleThe peduncle is the area of the fish that joins the body and the caudal fin together.  In Japanese ranchus especially, a thick peduncle when viewed from above is a very…
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Goldfish Internal Anatomy

Goldfish Internal Anatomy

(click image for larger view) Mouth Food is ingested through the mouth, but the mouth also takes in fresh water.  This water is continually pumped over the gills to extract oxygen from it, and then expelled through the operculua. Pharynx The pharynx is located at the very back of the mouth, and this is where…
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Goldfish Breeding Tubercles

Goldfish Breeding Tubercles

Goldfish Breeding Tubercles (Carassius auratus auratus)  Whatare they and what are they for? Jennie Connelly 2012  Breeding tubercles are keratin-based skin nodules found on male goldfish.  They most often occur on the leading rays of the pectoral fins and the opercula (gill covers), but they can also be found on all rays of the pectoral…
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