TDS and why is it important Preamble: Total Dissolved Solids or TDS for short is an area of water parameter we talk about very often, and is usually one of the first things we ask about when checking water parameters. This article will hopefully go into some depth for anyone who might still be new to the hobby, and likewise, might teach the veterans a thing or two that they might not have known about TDS. I have tried to keep the language appropriate to newcomers in mind, so please don’t ex