Resident Aquarium Nerd
Join Date: Apr 2004
Location: Murfreesboro, TN
There's no real "golden rule" when it comes to stocking fish. It depends on her filtration, current fish, water parameters, maintenance schedule, and water circulation.
If her tank doesn't have any fish yet or is lightly stocked, the koi should be fine. It's always possible that they'll outgrow it eventually but that'd take years and growth depends on factors like the variety of koi, diet, etc.
Very pretty koi, I love the silver ones.
"We weep for a bird's cry, but not for a fish's blood. Blessed are those with a voice."
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