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What to Look for in Young Koi

What to Look for in Young Koi

Nov 24th 2025

Picking out a young koi isn’t just about spotting the flashiest fish in the tank. It’s about laying the groundwork for a thriving, balanced pond. Whether you’re new to koi or adding …

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Water Quality: The Key to Healthy Koi

Water Quality: The Key to Healthy Koi

Apr 22nd 2024

 Most pond owners come to have a passion not only for the aesthetic of their pond, but also for the aquatic life that inhabits it. At Fitz’s Fish Ponds our passion lies with Japanese Koi an …

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How Big Do Koi Fish Get? Size by Type and Age

How Big Do Koi Fish Get? Size by Type and Age

Apr 19th 2024

How big do koi get? Most domestic pond koi grow to 12 to 15 inches, quality Japanese koi typically reach 22 to 26 inches, and jumbo bloodlines can pass 36 inches. Koi put on most of their le …

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