The Aquarist’s Edge [Weekly Aquarium Podcast]

Unusual Everyday Foods You Can Safely Feed Freshwater Aquarium Fish

In this episode Art explores unusual everyday foods that can be safely used as occasional treats in a freshwater aquarium. From courgette, cucumber, peas, spinach, pumpkin, butternut, sweet potato, carrot, and green beans, you’ll learn which foods suit different freshwater fish and how to prepare them properly.

We also explain why these foods should supplement, not replace, a balanced fish food diet, and how to avoid common feeding mistakes that can affect water quality. Whether you keep goldfish, guppies, mollies, bristlenose plecos, corydoras, bettas, shrimp, or snails, this episode will help you make safer, more informed feeding choices.

You’ll also learn which everyday foods should never go into your aquarium.

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Why Guppies Are So Fun to Keep - Colour, Personality, Easy Care & Fry Surprises

Guppies are more than “beginner fish"! They’re colourful, interactive, and endlessly entertaining in a home freshwater aquarium. In this episode of The Aquarist’s Edge, Art shares why guppies are so fun to keep, from their bold personalities and constantly-on-the-move behaviour to the way lighting and tank design make their colours explode. He also covers the reality of guppy breeding and fry, smart stocking and tank setup tips, and simple troubleshooting for common guppy problems like fin damage and stress.

 

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Why Minerals Matter in Your Freshwater Aquarium: GH, KH, Fish Health & Plant Growth Explained

In this episode of The Aquarist’s Edge, Art explores why minerals are essential for a healthy freshwater aquarium. From GH and KH to pH stability, fish health, shrimp moulting, snail shell development, and aquarium plant growth, you’ll learn how dissolved minerals quietly shape the success of your tank. Whether you use tap water, RO water, or a planted aquarium setup, this episode will help you understand what your water is really doing.

We also explain why clear water is not always healthy water, why chasing pH can cause problems, and how to create stable, suitable water for your fish and plants.

Activated Carbon (Charcoal) in Aquariums: What It Does, When to Use It, and Common Myths

Activated carbon (often called “charcoal”) is one of the most common aquarium filter media, but what does it actually do, and do you really need it running all the time? In this episode of The Aquarist’s Edge, Art breaks down how activated carbon works, what it removes, what it doesn’t remove, and the best times to use it in a freshwater aquarium. You’ll also learn why pet shops sell carbon so aggressively and how to avoid the cartridge-replacement trap that can destabilise your filter.

How to Build a Low-Stress Aquarium: A Stable, Low-Maintenance Freshwater Setup for Busy Fishkeepers

Want a freshwater aquarium that stays stable, looks great, and doesn’t turn into a weekly stress project? In this episode of The Aquarist’s Edge, Art breaks down exactly how to build a low-stress aquarium setup. An aquarium that’s forgiving, low-maintenance, and reliable even when life gets busy. You’ll learn how to pick the right tank size for stability, simplify filtration, choose hardy fish and easy plants, set a sensible lighting schedule, and create a routine you’ll actually stick to.

The Joy And The Stress Of Aquariums

Keeping a freshwater aquarium at home can be one of the most calming, rewarding hobbies; until a heater fails, algae takes over, or the guilt of fish loss hits hard. In this thoughtful episode of The Aquarist’s Edge, Art reflects on the real positives and negatives of home aquariums: stress relief, routine, learning, ethics, hidden costs, and how to keep the hobby enjoyable without chasing perfection. You’ll walk away with practical ways to simplify your setup, reduce anxiety, and build a tank that fits your real life.

Aquarium Lighting Explained: PAR, Spectrum, Algae & How to Choose the Right Fish Tank Light

Art breaks down aquarium lighting in a way that makes real sense for everyday freshwater fishkeepers. He covers the science behind PAR, spectrum, lumens, Kelvin, and photoperiod, and explain how these affect plant growth, fish behaviour, and algae control in a home aquarium. Whether you are setting up a low-tech planted tank or trying to understand why your aquarium light is causing problems instead of solving them, this episode gives you practical, easy-to-apply guidance.

You’ll learn how aquarium lights actually work, why more light is not always better, how to avoid common lighting mistakes, and what to look for when choosing the right fish tank light for your setup. This episode is ideal for beginners and intermediate hobbyists who want a clearer understanding of freshwater aquarium lighting without the confusing jargon.

If you enjoyed this episode, please leave a review and share it with another aquarist.

The Filter Isn’t a Box: How Flow, Oxygen & Biofilm Make (or Break) a Healthy Freshwater Aquarium

Your aquarium filter is a living habitat where biofilm, oxygen, and water flow decide how stable (or fragile) your freshwater tank becomes. In this episode of The Aquarist’s Edge, Art breaks down what actually happens inside sponge filters, canister filters, and hang-on-back filters, and why upgrading a filter can sometimes make a tank worse if the habitat shifts.

You’ll learn how filter flow rate, surface agitation, and filter media choices shape your biological filtration, water clarity, and long-term consistency.

💬 Join the conversation: Have you ever upgraded a filter and your tank got worse? Tell us what changed.

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