Matthew Hayes, better known as Fish Shop Matt, has spent most of his life around aquariums. In this episode, we explore why aquariums are far more than decoration. Matt talks about building living systems, choosing the right species, understanding water chemistry, and why fish behaviour often reveals when something is wrong before anything else does. We also discuss the calm aquariums can bring, the responsibility of caring for contained ecosystems, and what small tanks can teach us about the wider natural world.

Beneath the surface, water behaves very differently. In this episode, Stuart Sutcliffe shares what it’s really like to work inside it. From commercial diving operations to subsea infrastructure, we explore how water moves, how it creates risk, and why experience matters when conditions change fast. This is a conversation about pressure, safety, and responsibility in an environment most of us will never see.

In the final part of this conversation, David Bracey moves from fountain systems and public space into a bigger question: how do we work with water responsibly? We discuss conservation, sustainability, rainwater, the hidden cost of filtration, and why the industry needs to rethink how it uses and values water. David reflects on public water play, cultural attitudes to water, and what decades of working with it has taught him about restraint, respect, and long-term thinking.