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What's the best way to tell my betta fish's age from pictures?

Updated On September 23rd, 2025

I want to know how old my male veil tail betta fish is. Do you think you can help me with these pictures?

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1 Answer

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Answered By Angel Alvarado, LVT

Licensed Veterinary Technician

Published on June 20th, 2018

The best guess would be an adult. Unless you know the hatch date, it is difficult to be more specific. Adult Bettas are about 3 inches long. They reach this length anywhere between 7 and 12 months of age. His eyes are dark, his color is good and his fins are long. He's at least a year old. That would be my best "educated guess" based on the images provided.

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