Aquatic Diagnostics Lab

The Aquatic Diagnostics Laboratory will be closed December 20, 2025 through January 4, 2026 due to the holidays and limited staffing. Any samples received on December 20 or later will not be processed until January 5 at the earliest. To ensure accurate and timely results, we highly recommend waiting to ship your sample until January 4.

We have moved to an  online payment system for our most common tests including the base water chemistry test and water clearing treatment test. If you are unsure of the test(s) you are needing, please contact us before payment.

Water clearing treatment test results take a minimum of 21 days from the day that sample is received. All other testing results take a minimum of 14 days from the day that sample is received.

The Texas A&M AgriLife Extension Service Aquatic Diagnostics Laboratory (ADL) is housed in the Department of Rangeland, Wildlife & Fisheries Management. The laboratory was established in 2013 and provides water quality testing and fish parasite and disease diagnostics for aquaculture producers and private pond and lake owners.

The laboratory’s primary mission is to provide research based analysis and diagnostics and non-biased recommendations for owners of private waters and the stakeholders of Texas. The lab specializes in water chemistry to support fisheries and aquaculture, water clearing treatments, parasitology and bacterial histopathology.