Recirculating Aquaculture Systems (RAS) Technology Practicum I - RESCHEDULED September 18th-22nd, 2017 - Apopka, FL


About This Workshop


The Practicum is designed to provide training in the operation of typical Recirculating Aquaculture Systems (RAS), including theory of operation and activities surrounding the care and maintenance of the fish stock, tank systems, equipment, and physical plant of the facility.  It is designed as a five-day, hands-on instruction in the operation and management of RAS.  Open to all individuals, it is designed for Beginner to Intermediate level participants.  This course will be especially useful to those persons who have participated in RAS workshops previously; however, a prerequisite course is not required.  Participants will employ their basic knowledge of biology, chemistry, physics, mathematics, and geometry to understand the principles involved in management and operation of RAS. 

In order to provide quality instruction to participants, class size will be limited to the first 20 registrants.

Sessions will be conducted primarily at the Pentair Aquatic Eco-Systems World Aquaculture Technology Engineering and Research (PAES W.A.T.E.R.) Center ( and in classrooms of Pentair Aquatic Eco-Systems in Apopka, Florida, USA.

Training sessions are organized to give participants a period of five consecutive days working in the facility.  This will allow participants to track daily changes in water quality parameters, and to experience the impact that daily activities (feeding, chemical additions) have on systems in subsequent days. 

Participants will be working in both dry and wet activities, and with live fish of various sizes.  The following will be required for participation:

• Wet gear consisting of clothing or coverings such as rainwear that can be worn in wet conditions.

• Safety glasses (participants are encouraged to bring their own, or will be provided).

• Full coverage footwear, sandals or open-toed footwear will not be allowed.

• Gloves to resist puncture by fish fins/spines.

Out of town participants are suggested to arrive on Sunday and be prepared to begin work in PAES W.A.T.E.R. Center promptly at 0800 on Monday morning.  After a short review of safety guidelines, participants will begin with size sampling of fish to establish a starting point for the fish culture activities of the week.  The week’s activities will end with handling and size sampling of the fish populations again, to demonstrate the growth and progress made during the week’s activities.  Analysis and interpretation of the data generated, and the business impact, will be an integral part of the activities.

PAESWater Staff

PAES W.A.T.E.R. Center Staff. Our full-time staff consists of individuals with experience in fish culture, systems design and construction, equipment troubleshooting and maintenance, fish husbandry, pond management, aquaponics, live feeds production, RAS water quality, aquaculture education, and sales and service support.

About our Presenters


Dr. Thomas Losordo
Dr. Tom Losordo is the Managing Partner at Losordo & Associates, LLC., after retiring in June 2017 as Principal Scientist and Chief Engineer for Pentair Aquatic Eco-Systems. Dr. Losordo has earned a Bachelor degree in Biology and a Master’s degree and Ph.D. in Agricultural Engineering. Involved in aquaculture for 40 years, he has extensive experience in the research, development, design, and implementation of recirculating aquaculture systems worldwide. Formerly with the Department of Biological and Agricultural Engineering at North Carolina State University, Dr. Losordo headed the program of applied research and demonstration known as the North Carolina Fish Barn. Dr. Losordo also provided aquacultural engineering support to citizens of North Carolina and beyond through the North Carolina Cooperative Extension Service.

Mr DeLong

Mr. Dennis DeLong
Mr. Dennis DeLong is Manager of Customer Advocacy with Pentair Aquatic Eco-Systems. Mr. DeLong has earned a Bachelor degree in Biology and a Master of Science degree in Management. He has been involved in both commercial aquaculture activities and research and development for 39 years. Prior to joining Pentair in July 2011, Mr. DeLong managed the research and demonstration activities within the North Carolina State University Fish Barn program. He provided extension assistance in aquaculture to citizens and agri-businesses in North Carolina for 20 years, including the design, construction, and operation of RAS facilities.

Topics to be Covered

• Presentation of Information on Example Components in PAES W.A.T.E.R.
• Hazards Common to Aquaculture Operations
• Working Safely with Electrical Systems in Aquaculture
• Laboratory Procedures
• Confined Space Cautions
• Basic Mathematics and Calculations Useful in Aquaculture
• Stock Management – The Bioplan
• Daily Check-in and Check-out routine
• Measuring and Recording Water Quality Parameters
• Interpreting Water Quality Data for System Operation
• Calculating Daily Additions to Systems
• Size Sampling of Fish Stock
• Feeds and Feeding
• Feed storage and handling
• System Cleaning and Maintenance
• Pumps, Pump Operation, Pump Maintenance
• Regenerative Blowers and more.


RAS Practicum Course Brochure


Rescheduled for September 18th-22nd, 2017 due to Hurricane Irma
8AM–5PM (Mon-Fri)


Pentair Aquatic Eco-Systems
2395 Apopka Blvd.
Apopka, FL 32703


Regular Registration - $1,250
Student Registration - $625 (with valid student ID)

Additional participants from the same organization, $1,000 each. Promotional discounts, incentives, etc. can not be applied to workshop course rates.

If registering as a student, you will be requested to provide proof of a valid, currently active student ID after registration.

Course participants will receive a printed workbook with copies of presentation materials, and catered lunch on site each day. Participants are responsible for their other meals, lodging, and transportation. As with all Pentair Aquatic Eco-Systems workshops and short courses, further discounts of registration fees may not be applied.

Participants will be required to sign a liability waiver, a copy of which is available in the description to the right or upon request from


Reservations are essential and only accepted with payment in full.


Hampton Inn Apopka
321 S. Lake Cortez Drive
Apopka, FL USA 32703
407 880-7861

Holiday Inn Express
238 South Line Drive
Apopka, FL USA 32703
407 880-7868

To receive the workshop rate, please request 'Pentair Corporate Rate' when booking your accommodations.

Cancellation Policy: Registered attendees who cancel at least 30 days prior to the workshop will receive a full refund. Cancellations made 29 to 5 days before the start date result in a 75% refund. NO refund will be granted for cancellations made 4 to 0 days before the start date.

I hereby agree to the terms listed on this form and I grant my explicit permission to Pentair Aquatic Eco-Systems (“PAES”) and their affiliated companies, to use my name, my comments about the workshop (written and spoken) and my photo/video likeness in any future marketing and advertising materials; as well as in any other legal means. I hereby grant full copyright of photographs and other written materials from the workshop/course to Pentair Aquatic Eco-Systems and their affiliated companies, jointly with the right to reproduce said photos and materials fully or in part. I understand that commercial use of any written materials, videos or photos provided by PAES are strictly prohibited unless written authorization is provided by PAES. Video and/or audio recording of presentations is prohibited.

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