Goldfishvet.com - Frequently Asked Questions - ANSWERED
Question: "However the tail rot took about 60% of the oranda's tail.

How long does it generally take for the tail to grow out?"

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Answer:

The edge will look impressively smooth and healed in just a couple weeks but it will be months for the tail to regain it's orginal length - worse, there will always be a defect in the tail at the original "blast line" where you got the brakes on the infection.

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