Mastering the delicate balance of GH, KH, and TDS for sensitive monster species requires more than just a basic test kit.
When handling high-end specimens like Discus or Black Diamond Stingrays, a simple understanding of ammonia and nitrites is not enough. You must master the relationship between General Hardness (GH), Carbonate Hardness (KH), and Total Dissolved Solids (TDS). In this article, we explain how stable parameters prevent osmotic shock and optimize coloration.