Welcome to Underwater Environments San Diego counties largest dealer in Fine Imported Japanese Koi and Aquatic Plants. We take pride in our beautiful retail location, where we have remained for over 20 years through our dedication to customer service and our passion to give you the best pond experience possible.

When you step through the doors of our beautiful retail location or browse through the pages of our website we want you to realize what you can achieve if you follow our expert advice.

Our Koi selection ranges from exquisite Japanese Koi, hand selected each year from the Koi farms of Japan, to the imported Malayasian with their beautiful variety of Longfin Koi .We also have a wide variety of Domestic Koi all very healthy and colorful.

Underwater Environments.......We are the experts on Koi fish, Koi ponds, Koi pond filters and Koi pond pumps!

Though Koi and Goldfish are extremely hearty and relatively easy to care for, it is very important to keep a watch on their environment in the Koi Pond to keep them at their healthiest.Our experts are here to help with any problems or questions you may have.

Please explore our website to find the information you need to create ideal Koi pond Environments for your Koi companions. Be sure to check out our Pond Filters and Pond Pumps pages for the best tips on keeping your Koi fish pond beautiful and algae free.

The shelves of our shop are stocked full of all the products that we know work. From bacteria to alge control we have it all. Pond Pumps small and large filtration systems come on in and check it out .

We are open 7 days a week !!

The new Japanese Koi have arrived and are stunning. 2014 proves to one of the best years yet!

The fish look very healthy and are ready for sale. There is a great selection of fine Imported Japanese koi right now.

Dont suffer from pond envy this year. Let our highly trained pond professionals keep your alge blooms to a minimum and your water crystal clear or have our design team come in and make your pond look stunning with personalized care and enhance your ponds beauty from the wide selection of pond plants we have to choose from when in season.

Store hours....Mon-Sat 9:00am to 5:00pm.....Sunday 10:00am to 4:00pm