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Domestic betta variety comparisons.
Koi Betta Male vs Female: Telling Them Apart
On a koi betta, fin length tells you almost nothing. Most koi are plakats, so both sexes are short finned. Sex them on the beard,…
Male vs Female Betta Fish: Every Difference That Matters
The most reliable way to tell a male betta from a female is to read several traits together, never just one. Males usually have longer…