The Aquarist’s Edge [Weekly Aquarium Podcast]

Can better colour really be trained into a fish, or is it mostly down to luck and genetics? In this episode of The Aquarist's Edge, Art breaks down what actually drives fish colouration, from diet and water quality to lighting, substrate, and social grouping. He looks at where colour genuinely comes from, why carotenoid-rich foods matter for reds and oranges, how chronic stress quietly dulls even healthy fish, and why factors like substrate tone and shoal size can visibly change how a fish displays. The episode also sets realistic expectations, since genetics ultimately sets the ceiling no amount of good care can raise. If you're chasing more vibrant fish, wondering why your tank doesn't look as colourful as you'd hoped, or just curious what's actually happening beneath the surface, this episode will help you separate what you can influence from what you can't. Topics include: fish colour, colour-enhancing fish food, carotenoids in fish diet, fish stress and colouration, aquarium lighting for colour, substrate and fish colour, shoaling fish behaviour, fish genetics, freshwater fish care, and realistic fishkeeping expectations. Enjoyed the episode? Please follow The Aquarist's Edge and leave a review to help more freshwater aquarists discover the show. ⭐ Enjoying the podcast? Please leave a review as it helps other fishkeepers find the show. ☕ Support the show by buying Art a coffee: https://ko-fi.com/artsfishroom

Corydoras are some of the most popular freshwater catfish in the aquarium hobby, but keeping them successfully involves far more than simply adding a few "bottom cleaners" to your tank. Art covers the essentials of Corydoras care, including ideal group size, aquarium setup, substrate choice, feeding, water conditions, tankmates, common health concerns and some of the unusual behaviours that often confuse new keepers. You’ll also learn why Corydoras should not be expected to survive on leftovers, why species-specific temperature requirements matter, and what those sudden trips to the surface actually mean. Whether you keep panda corys, bronze corys, peppered corys, Sterbai corys or another member of the Corydoradinae group, this practical freshwater aquarium care guide will help you create better conditions for healthy, active and confident fish. If you enjoy freshwater aquarium care, tropical fishkeeping, Corydoras care guides and practical aquarium advice, subscribe to The Aquarist’s Edge and leave a review to help more aquarists discover the show. ⭐ Enjoying the podcast? Please leave a review as it helps other fishkeepers find the show. ☕ Support the show by buying Art a coffee: https://ko-fi.com/artsfishroom

Tiger barbs are hardy, colourful, and endlessly entertaining but they’re also one of the most commonly mis-stocked freshwater fish, which is why fin-nipping and “random aggression” show up so often. In this episode of The Aquarist’s Edge, Art breaks down a complete tiger barb care guide: the best tank size in litres, the ideal schooling group size, the most effective ways to reduce aggression, and how to choose tank mates that won’t get harassed. You’ll also learn practical feeding strategies for health and colour, how to set up your aquascape with sight breaks and swimming lanes, and ways to address and prevent problems like faded colour, chasing, and torn fins. 🎵 Music: 'Love Religion - Instrumental' - Sully Bright (Epidemic Sound - https://www.epidemicsound.com/music/tracks/65d85c2c-1d97-48b2-b9a9-dfb36a4a891c/)