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PODCAST

Inflow: Aquatic Animal Life Support Systems and Habitats

Joe and Dr. Jeff

Joe and Dr. Jeff discuss all things related to Zoo and Aquarium Aquatic Animal Life Support Systems. Everything from water treatment equipment and design to operations and construction. We talk to operators, engineers, architects, curators, and anyone and everyone who works on keeping our zoo and aquarium water clean, our animals healthy, our exhibits natural and our systems sustainable.

science natural sciences

All Episodes

51:49

Ep 28 - Facility Spolight: Minnesota Zoo

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/10/31

In this Facility Spotlight episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber talk with Wes Schmidt, Senior Life Support Systems Technician at the Minnesota Zoo. Wes takes listeners behind the scenes of one of the most diverse and technically challenging facilities in the Midwest, where maintaining healthy aquatic environments means balancing complex life support systems (LSS), mechanical infrastructure, and Minnesota's extreme seasonal

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46:17

Ep 27 - Where Architecture Meets Aquatic Life...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/10/24

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber sit down with John Christiansen, Senior Project Architect at EHDD Architecture, to explore how thoughtful design and engineering come together to create world-class aquariums and aquatic facilities. With decades of experience designing some of the most recognized and sustainable public aquariums, zoos, and research centers, John shares insights into how architecture, life support

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48:50

Ep 26 - From Valves to Vision: Engineering the Future...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/10/18

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber welcome Nick Kaiser, Director of Facilities at the Shedd Aquarium in Chicago. With over two decades of experience—from operator to engineer to director—Nick shares his unique perspective on bridging life support operations, engineering design, and sustainability at one of the nation’s most iconic aquariums. The conversation dives into Shedd’s ongoing 95-year-old infrastructure

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50:25

Ep 25 - Reinventing the Flow: From Aquaculture Roots...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/10/11

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber sit down with Sam Courtland, founder of Integrated Aqua Systems (IAS), to explore his journey from aquaculture operations to engineering advanced aquatic systems used in research, zoos, and public aquariums. Sam shares how his early experiences working on shrimp farms and recirculating aquaculture systems shaped his vision for modular design, water management, and innovation in the

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51:09

Ep 24 - Ozone in LSS: Disinfection, Design, and Clean...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/09/26

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber are joined by Rob Turnbull, ozone specialist with Telchine Energy Technologies, to explore the critical role of ozone in aquatic life support systems (LSS). Rob breaks down how ozone works as a powerful disinfectant, its impact on water clarity and pathogen control, and why it’s essential for maintaining healthy environments in aquariums, zoos, and aquaculture systems. The

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44:46

Ep 23 - Engineering Attractions: Hot Springs, Surf...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/09/19

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber talk with Rob Cloward and Allen Clawson of Cloward H2O, one of the world’s leading aquatic engineering firms. From natural hot springs and wave-generating surf parks to large-scale aquariums and zoos, Cloward H2O has been at the forefront of designing innovative water systems that blend recreation, sustainability, and animal care. Rob and Allen share insights into: The evolution of

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41:02

Ep 22 - Aquatic Equipment Design, Sustainability, and...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/09/12

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber sit down with Amy Stone, an experienced aquatic systems designer whose career bridges aquaculture, aquaponics, and life support system (LSS) design. Amy shares her journey from raising fish to leading Aquatic Equipment & Design. The conversation also pays tribute to the late Stewart McDaniel, honoring his impact and legacy in the aquatic life support community. Amy discusses what she

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50:06

Ep 21 - Facility Spotlight: Philadelphia Zoo

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/08/29

In this INFLOW Facility Spotlight, hosts Joe Arlotto and Dr. Jeff Keaffaber talk with Keith Hacke, Director of Facilities at the Philadelphia Zoo. From building Long Beach and Georgia Aquarium to managing 170+ years of infrastructure at America’s oldest zoo, Keith shares insights on life support system design, sustainability, and the challenges of modernizing historic facilities while supporting animal care. (2:58) - Keith's LSS Backstory (7:25) - Long Beach Aquarium of the Pacific (15:05) - Georgia

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43:01

Ep 20 - Facility Spotlight: Kansas City Zoo &...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/08/22

In this episode of INFLOW: Aquatic Animal Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber sit down with Austin Calpin, Curator of Life Support and Water Quality at the Kansas City Zoo & Aquarium. Austin shares his unique journey from high school aquarium science programs to leading one of the newest, most advanced facilities in the U.S. We explore: Austin’s career path through major aquariums and construction projects Behind-the-scenes innovations in life support

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43:52

Ep 19 - From Diver to Designer: Chris Warner’s...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/07/18

In this episode of INFLOW: Aquatic Animal and Life Support Systems and Habitats, hosts Joe Arlotto and Dr. Jeff Keaffaber welcome special guest Chris Warner of Aquatic Environmental Systems. Chris shares his remarkable story—from growing up across continents to becoming a commercial diver and eventually a pioneer in aquarium life support systems. Discover how a diving accident unexpectedly launched Chris into the world of public aquariums, leading him to build and manage Australia’s

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50:40

Ep 18 - Evolution of Aquarium LSS: Chemistry,...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/07/09

Joe Arlotto and Dr. Jeff Keaffaber dive deep into the world of aquatic life support systems (LSS) with special guest David LaBonne, a pioneering microbiologist and former Director of Facilities at the National Aquarium in Baltimore. David shares his remarkable journey from microbiology and immunodiagnostics to redefining how public aquariums approach water chemistry, ozone disinfection, and microbiome management. From early challenges with coliform counts and ozone tower inefficiencies to

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46:00

Ep 17 - Facility Spotlight: The Maritime Aquarium

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/07/02

We're excited introduce our new Facility Spotlight series! Hosts Joe Arlotto and Dr. Jeff Keaffaber go in-depth on the Maritime Aquarium in Norwalk, Connecticut, with a behind-the-scenes conversation featuring Erik Holmberg, Associate Director of Life Support. Erik shares his hands-on journey from general maintenance to LSS leadership, detailing his role in system upgrades, daily operations, emergency responses, and long-term infrastructure improvements. From retrofitting 30-year-old systems to

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46:36

Ep 16 - General Contractors: The Realities of Life...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/06/24

In this episode, hosts Joe and Dr. Jeff sit down with Holly and Beau Dempsey, the dynamic duo behind Longhorn Organics, a specialty LSS construction firm transforming how aquariums and aquatic exhibits are built. 🎙️ We dive deep into what sets LSS construction apart from traditional mechanical contracting, the critical role of contractor-owner communication, and how specialty contractors bridge the gap between general construction and highly technical biological filtration systems. We cover: (3:03)

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46:12

Ep 15 - What Does the Future of LSS Design Look Like?

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/06/10

In this episode we take a quick look back on the early days of LSS with Terri Johnson, President and CEO at TJP. Terri shares stories from her early days at ENARTEC and then we focus our discussion on how Terri meets the needs of her clients and the LSS innovations that pique her interests. We discuss: (2:34) - Terri's LSS Origin Story (8:58) - SeaWorld Texas and Removing Ammonia From Systems (13:57) - Background on TJP Engineering (15:25) - Introducing Innovative Ideas (22:28) - Reducing Reliance

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43:37

Ep 14 - Aquatic Animal Health

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/05/29

How can we maintain healthy habitats for our aquatic animals? Veteranarian Dr. Brian Joseph joins us for a in-depth discussion on animal health. Together we cover: (3:42) - Dr. Joseph's Background (8:45) - Collaborating with LSS Operators (10:40) - Salinity For Marine Mammal Health (17:28) - Nitrates and Denitrification (23:40) - System Monitoring (27:33) - Vibration Mitigation (32:20) - Current Projects (36:18) - Advice Have a question you want answered on the show? Click here to leave us a

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48:47

Ep 13 - Sustainable LSS Solutions: Reducing Water,...

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/05/23

Our focus this episode is all on sustainability and what that means in the LSS world. We are joined by Mark Fisher, Vice President of Facilities Planning and Sustainability at the Cincinnati Zoo, who shares how focusing on sustainability transformed American's second oldest zoo. Together we discuss: (4:40) - Mark Fisher's Background (8:51) - LSS Staff Duties (13:10) - Bringing Sustainability to the Cincinnati Zoo (23:35) - Staff Buy-In (33:11) - Elephant Trek (42:18) - AZFA & AALSO Have a

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45:18

Ep 12 - An International View of LSS

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/05/19

In this episode of INFLOW, we look at LSS from an international perspective as we welcome special guest Mike De Maine. Mike shares stories from projects in South Africa, Darbin, Dubai and Abu Dhabi. Together we discuss: (5:03) - Mike's LSS Story (10:14) - Finding International LSS Jobs (11:24) - Transitioning from Academics to LSS Operations (15:46) - De-Nitrification in Dubai (18:54) - SWAD Design (26:14) - Europe/Asia vs. US Operators & Design (34:12) - Glass vs. Sand Media (40:43) - Recap We

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45:52

Ep 11 - Pumps: The Beating Heart of LSS

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/05/08

In this episode of INFLOW, we explore the importance of pumps in LSS as we welcome Ben Ashe of MDM Pumps. Together we discuss: (3:00) - Ben's LSS Background (9:45) - Saltwater and Corrosive Chemicals (12:50) - Pump Basics (16:30) - Choosing a Pump for an Application (18:45) - Variable Drive Componments (22:00) - VFD's Issues (25:00) - How VFD Works (28:00) - Pump Curve (31:00) - Head issues (34:00) - Online Tool for Pump Choice (36:00) - Preventative Maintenance (39:00) - Pump Rebuilds (40:00) -

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44:11

Ep 10 - An In-Depth Look at Monterey Bay Aquarium

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/05/01

In our first episode since AALSO 2025, we welcome Roger Phillips as our guest for this episode. We discuss Roger's time as Director of Applied Research at the Monterey Bay Aquarium and go in-depth on their facility. We cover: (4:10) - Roger's Start in LSS (13:40) - Treating Water Coming In (21:46) - Unique Relationship with Operators (33:55) - Off-site Holding Facility Stay connected with INFLOW at inflowlsspodcast.com.

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47:54

Ep 9 - Making Our Systems Smarter with Controls

Inflow: Aquatic Animal Life Support Systems and Habitats ·

2025/04/09

As we continue our look at the history of LSS, we now turn to the importance of controls and automation. We are joined by Jim Ring, President of RCK Controls, and we discuss Jim’s start at Sea World, discovering standards that still apply today and how we've made our systems smarter over time. We cover: 3:02 - Jim's Start in LSS 11:48 - Pumping Less Water for Better Quality 21:51 - First Time Controlling a System 30:48 - Building a Controls Staff 37:18 - Heat Stress and Energy 40:40 - History of

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