If you have ever considered being a pet parent to Koi fish, I would say - go for it! They make great pets!
Read up on the subject first. This way, you can familiarize yourself with what to expect. You can prepare yourself for the best possible experience for both you and your new additions to your family.
A great book to start with is "Koi For Dummies". You are familiar with this series of books that lays out an explanation on the subject in a clear-cut manner. It is reasonably priced and a good place to start. It explains about how beautiful koi are and how they really do have their own personalities!
It talks about the fact that, although being a pet parent to Koi fish may not require being an expert, there is more to it than tossing in a little fish food into a fish bowl. This is exactly what I always say about all types of fish. So, educate yourself! It's fun and worth the time spent reading up on one of your favorite topics - your fishy pets!
Here's another good one: "The Super Simple Guide to Koi". In here, you will find a fascinating history of this beautiful type of fish. Also, you will learn about the anatomy and physiology of Koi and the various types of koi and what to look for in koi fish when you buy them and how to get them adjusted to their new home.
Give your new little kids a fighting chance by reading up on how to care for them before you bring them home. You will have a lot happier outcome for you and everyone else at home if you just do a little research before you bring the little fishies home. Everyone will be much happier in the end. It's a labor of love. Your passion for your fishies makes it a joy to read about their care and prepare a perfect place for them before they arrive at their new home with you!