Warm-Water Aquaculture

The challenges are real. So are our solutions. Pentair Aquatic Eco-Systems offers unparalleled resources and expertise to improve water quality in recirculating aquaculture systems (RAS). Our team of scientists, engineers and specialists is the global leader and can help you improve results in any part of the warm-water growing cycle.

Our Warm-Water Solutions

Tour a typical installation to learn more about how Pentair Aquatic Eco-Systems can help with your next project.


1. Oxygenation

1. Oxygenation

Monitoring, Managing Dissolved Oxygen is Key

If the dissolved oxygen level (D.O.) is too high, oxygen supersaturation can cause gas embolism, depress metabolism and inhibit respiratory enzymes, all of which can kill fish. If D.O. is too low, the fish may not eat and may expend additional energy seeking oxygen. If lower yet, they can experience severe stress and, of course, death. The amount of D.O. in water must be monitored with a test kit or meter. Our experts can show you how, and also recommend which oxygen cones, pressurized columns or diffusers are best for your tanks.

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2. Biofiltration

2. Biofiltration

Remove Toxic Ammonia with Biofilters

One challenge faced by aquaculturists is the buildup of ammonia nitrogen resulting from fish metabolism. Biofiltration uses cultured bacteria to metabolize ammonia nitrogen into less toxic nitrate compounds. We offer several types of biofilters for warm-water applications.

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3. Solids Removal

3. Solids Removal

High-Efficiency Drum Screens Recommended

Uneaten food, fish waste and other solids must be removed from your holding tanks before they dissolve and affect water quality, the health of your livestock and ultimately the taste of your fish. Mechanical filtration with rotary drum screens is a highly efficient and reliable way to remove solids from large volumes of warm water. Our engineers also carefully design tanks to quickly flush solids out through drain traps.

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4. Disinfection

4. Disinfection

UV Radiation Treats Culture Water

Biological and mechanical filtration are essential parts of recirculating aquaculture systems but do not remove bacteria, protozoa and viruses. Treated water must be disinfected before returning it from your filter system to holding tanks. Ultraviolet radiation (UV) is highly effective but the amount must be properly calculated. Our team of experts can help you troubleshoot issues and recommend better disinfectant solutions.

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5. Gas Balancing

5. Gas Balancing

Keep CO2, Other Gases at Safe Levels

Carbon dioxide (CO2) causes problems in recirculating aquaculture systems without aeration or degassing. Carbon dioxide must be removed or it can build up to levels dangerous to the fish and to humans if the fish are raised in a closed building. Pentair Aquatic Eco-Systems has designed state-of-the-art towers and columns to help keep gases at safe levels.

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Ricardo Arias, Aquaculture Systems Designer

Ricardo graduated from the University of Tampa with a Bachelor of Science degree in biology and minor in chemistry. He completed aquaculture training in Pusan, South Korea, and then worked in shrimp culture, tilapia culture and tropical fish breeding.

Ricardo was also in charge of developing the Aquaculture Experimental Station at the Universidad Central del Este, Dominican Republic.

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Need Answers Now?

Many companies can design a warm-water recirculating aquaculture system. Only our team of scientists, engineers and technicians will provide you with recommendations for just what’s needed to maintain good water quality for healthy fish and also to operate efficiently and profitably.

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Or call (877) 347-4788