The Aquarist's Edge

In this episode we take a critical look at one of the most persistent myths in the hobby: that air bubbles from your filter automatically mean your fish are well-oxygenated. Spoiler alert: they don’t. We uncover the science behind gas exchange, explain why surface agitation matters more than you think, and offer proven solutions to improve oxygen levels where your fish need it most. You’ll learn h...

Have you ever felt guilty for not feeding your fish? You may actually have helped make them healthier! In this episode of The Aquarist’s Edge, we explore the surprising science and practical benefits of fasting your community aquarium fish. Learn how strategic fasting improves digestion, reduces waste buildup, supports water quality, and mimics natural feeding rhythms. We cover species-specific ad...

In this episode of The Aquarist’s Edge, we learn about the basics of care for the often-misunderstood Clown Loaches (Chromobotia macracanthus), covering everything from their natural habitat in Indonesian floodplains to their unique behaviours in the home aquarium. Whether you're housing juveniles or managing a mature shoal, you'll learn how to design the perfect tank, maintain ideal water conditi...

In this episode of The Aquarist’s Edge, we answer one of the most critical and misunderstood questions in fishkeeping: Where should you place your aquarium? With expert-level insights, we cover everything from structural safety and natural light to temperature stability, noise, and real-life home scenarios. Whether you're setting up a nano tank or a 600-liter community display, this episode offers...

The recently released documentary film entitled "Aquariums: The Dark Hobby" shines a light on the marine aquarium hobby's impact on Hawaii's reefs and the broader marine ecosystem. In this episode of The Aquarist’s Edge, we journey from marinw coral reefs to freshwater riverbeds, uncovering what ethical, sustainable fishkeeping really means for freshwater aquarists. While marine hobbyists often fa...

In this episode of The Aquarist’s Edge, we explore the art and science of building a vibrant planted aquarium without CO₂ injection. Learn how to choose the right plants, lighting, substrate, and layout strategies to create lush growth with minimal tech and maintenance. Whether you're a beginner or an aquascaper on a budget, this episode will help you build a tank that thrives naturally and looks...

In this week’s episode of The Aquarist’s Edge, we’re taking the mystery out of guppy genetics and turning it into a clear, beginner-friendly guide for hobbyists who want to breed stunning guppies right at home. From dominant and recessive genes to punnett squares and strain development, this episode is packed with practical insights, scientific explanations, and real-world advice you can apply to...

In this episode of The Aquarist’s Edge, we explore the use of aquarium salt - one of the most powerful, misunderstood tools in freshwater fishkeeping. From the science of osmoregulation to practical treatment techniques, we break down what salt does, when to use it, and when it can do more harm than good. Whether you’re dealing with parasites, stress, nitrite spikes, or simply wondering if salt be...

In this episode of The Aquarist’s Edge, we explore the slimy, often misunderstood layer of microbial life known as biofilm. We learn that is absolutely essential to the health and balance of your aquarium. From its critical role in biological filtration and nutrient cycling, to how it feeds shrimp, fry, and snails - we go deep into the science and practical applications of biofilm in both planted...

In today’s episode of The Aquarist’s Edge, we explore 10 incredibly useful tips for keeping your Cherry Shrimp healthy, colourful, and thriving. Whether you're starting a new colony or troubleshooting mysterious disappearances, this episode explores everything you need to know - from tank setup to feeding, water quality, breeding, and more. You’ll also learn how to avoid common mistakes, spot hidd...

Interview with Tristan Fourie (@SimplyAquaticCT). In this episode of The Aquarist’s Edge, host Arthur Preston sits down with Tristan Fourie to discuss his journey in the aquatic hobby and his expertise in freshwater shrimp breeding. From starting out in fishkeeping to building a top-class shrimp room, Tristan shares his knowledge, experiences, and the importance of community in the hobby. 📌 Topic...

In this episode of The Aquarist’s Edge, we explore how to revitalize your aquarium fish through proper diet and supplementation. From DIY fish food recipes to nutrient-packed commercial supplements, this episode is your complete guide to enhancing your fish’s health. We break down the essential nutrients fish need for growth, immunity, and vibrant colouration while tackling common feeding mistakes...

Are angelfish the graceful beauties of the aquarium world, or are they secretly little troublemakers? In this extended episode of The Aquarist’s Edge, we explore the behaviour of angelfish, their natural instincts, and what causes them to turn aggressive. From ideal tank setups to managing aggression and choosing the right tankmates, we cover everything you need to know to keep your angelfish happ...

In this episode of The Aquarist’s Edge, we explore everything you need to know about pregnant guppy care! From identifying pregnancy signs to advanced breeding techniques, we cover the best ways to ensure healthy fry and strong genetics. Whether you’re a beginner or an experienced aquarist, this episode has invaluable insights for you! 👉 Leave a review: https://theaquaristsedge.podcastpage.io/rev...

In this episode of The Aquarist’s Edge, host Arthur Preston explores some of the most debated practices in the freshwater aquarium hobby. From ethical dilemmas to scientific revelations, this episode unpacks the complexities of creating a thriving aquatic environment. Whether you’re a beginner or a seasoned aquarist, this episode is packed with insights that will make you rethink how you care for...

Is your aquarium facing challenges like algae blooms, unexplained fish illness, or struggling plant growth? Before you reach for a quick fix, tune in to this episode of The Aquarist's Edge! We explore the aquarist's most powerful tool: a problem-solving mindset. Learn how to observe your tank like a scientist, identify the root causes of common problems, and develop effective action plans. From un...

Join us for an enlightening episode of The Aquarist's Edge, in which we explore the essential world of water chemistry! Have you ever wondered how the invisible elements in your aquarium can impact the health and happiness of your fish? In this episode, we demystify the critical parameters of water chemistry, including pH, ammonia, nitrite, nitrate, general hardness (GH), and carbonate hardness (K...

Whether you’re setting up a vibrant planted tank, creating a haven for burrowing fish, or exploring a unique, biotope-inspired setup, the substrate you choose plays a critical role in your aquarium's success. We explore the pros and cons of popular options like gravel, sand, and aquarium soil, while also venturing into creative alternatives like leaf litter, botanicals, and even twigs. Plus, we in...

Are some of the things you’ve heard about fishkeeping actually myths? In this episode of The Aquarist’s Edge, we tackle five myths we must stop believing, and spreading, in the aquarium hobby. We’ll explore what’s fact, what’s fiction, and how these myths could be affecting your aquarium’s success.  

Whether you’re just starting your fishkeeping journey or looking for low-maintenance additions to your tank, we’ve got you covered. From the colourful and peaceful guppy to the fascinating bristlenose pleco, we explore species that are easy to care for, resilient, and perfect for community tanks. Learn practical care tips, water parameter preferences, and feeding recommendations for popular specie...

Curiosity isn’t just for cats - it’s the key to thriving in the aquarium hobby! In this episode of The Aquarist’s Edge, we explore how asking the right questions, embracing mistakes, and experimenting with new ideas can transform your home aquarium into a vibrant ecosystem. Whether you're battling algae, experimenting with planted tanks, or learning the ropes of fish breeding, this episode is pack...

Are you ready to transform your guppies into a vibrant display of aquatic beauty? This episode reveals the secrets to achieving stunning colours in your guppies. Learn how to harness the power of genetics, master selective breeding, and create the perfect aquarium environment to make your guppies glow. There are practical tips on choosing the right lighting, maintaining optimal water conditions, a...

Start the New Year right with The Aquarist's Edge! In this episode, we explore 10 New Year's Resolutions for Fishkeepers to make the coming year your most successful fishkeeping year yet. From enhancing water quality and upgrading equipment to mastering aquascaping techniques and reducing algae growth, we dive deep into practical tips and creative ideas to elevate your aquarium game. Whether you'r...

In this episode of The Aquarist's Edge, we explore five common mistakes that aquarium keepers - both new and experienced - often encounter. From overstocking your tank to neglecting the nitrogen cycle, we unpack these pitfalls and share practical tips to help you maintain a thriving, stress-free aquatic environment. Along the way, we also delve into other mistakes that we've all made along the way...

Discover the captivating world of nano aquariums in Small Tanks, Big Rewards: Mastering the Art of Nano Aquariums! In this episode, we explore everything you need to know about creating and maintaining stunning nano tanks - those compact aquatic marvels under 40 litres. Whether you're a beginner starting small or a seasoned aquarist looking for a rewarding challenge, this podcast is packed with ti...