How to introduce new fish to an aquarium without killing old ones?

Question

Hello, I was wondering how one would introduce new fish to a aquarium that already has preexisting fish. Whenever I add new koi fish to my collection, most if not all of my old koi fish die from diseases. Can you explain how this process could be done correctly? Thank you. Pet's info: Fish | Unknown - Fish | Male | unneutered | 0.5 lbs

Dr. Dayna, DVM, CVA · Accepted Answer

Ideally you would quarantine any new Fish in a separate aquarium for a few weeks to make sure they do not show any signs of diseases or infection. Once 2-3 weeks have passed without any signs of a problem then it is usually pretty safe to introduce to the common aquarium. Good luck and I hope they do well!

How to introduce new fish to an aquarium without killing old ones?

Most Helpful Answer

Related Questions

Why is my mouse's eye swollen, cloudy, and has pus?

What fish dog food helps dry skin if my dog eats Science Diet?

My pet is breathing hard, not eating, and lethargic. What's wrong?

My pet has red spots all over. What's causing them and what to do?

My small pet is limping and can't bear weight. Should I see a vet?

My dwarf hamster has a shut eye and is limping. What should I do?

Share