For better presentation of content, we recommend opening on a different browser. We recommend using either Google Chrome or Firefox.

Submerse Yourself In Your Underwater World

Retailer of the Month

fish swimming

Join us in celebrating our API AQUASPIN Retailer of the Month! Biggs Lagoon is located in Longmont, CO and have made amazing use of our AQUASPIN meter and technology, quickly and easily testing aquarium or pond waters for their customers. For all of your Freshwater or Saltwater needs, Biggs Lagoon is a great place to start!

Learn about AQUASPIN


fish swimming

Keeping an aquarium or pond is relaxing and fascinating, and API brand is here to support you in your fish keeping journey! Whether you’re a seasoned fish keeper or a first-timer, you will love using our products to help you start or maintain your ideal aquarium or pond.

Browse Our Products

Aquaspin™ Advise

fish swimming

AQUASPIN Advise allows you to track what is happening inside your aquarium or pond to ensure the health of your fish and other aquatic life. It uses your water testing results to give specific recommendations customized to your aquarium or pond. Test at home or at your local AQUASPIN retailer.

Manage Your Aquarium

Featured Products