Tannins Explained: Blackwater Aquariums, Fish Health, and the Science of Tea-Stained Water

“Tannins Explained” takes you into the science and beauty of blackwater aquariums. In this episode of The Aquarist’s Edge, Art explores what tannins are, where they come from, how they influence water chemistry, and why so many softwater fish thrive in tannin-rich environments. From driftwood and Indian almond leaves to peat and alder cones, learn exactly how tannins transform your tank and how to use them safely. Whether you’re curious about why your driftwood stained your tank, how tannins lower pH, or which fish species benefit most from blackwater setups, this episode is packed with clear explanations, troubleshooting advice, and practical aquascaping tips. Mentioned in this episode: The Tint podcast: https://tanninaquatics.com/pages/inspiration Music: "West Coast Dreams" - Ben Curtis (Epidemic Sound: https://www.epidemicsound.com/music/tracks/07feeb8f-922a-4e5c-9a99-6737dba094f1/)