- 1). Look for breeding tubercles to determine if your fish is male. These are tiny white dots which will develop on the fish near the eyes, gills and fins in a male goldfish of sexual maturity.
- 2). Check for vents. The vent opening is located just in front of the tail. If it is protruded, the fish is probably female; if it is longer, it's probably male.
- 3). Check the fishes' overall shapes. Females are usually rounder and have wider abdomens, with a more protruding appearance. In addition, their body will get larger as they produce eggs.
- 4). Watch your fishes' behavior. The males will generally chase or nudge the females, as a reaction to pheromones released by the females. However, please note that if there are no females in your tank, males may chase each other.
Subscribe to our newsletter
Sign up here to get the latest news, updates and special offers delivered directly to your inbox.
You can unsubscribe at any time
Next Post