07-28-2009, 07:55 PM
Bob C Wrote:The stuff in your kettle (and around steam relief valves on locomotives) is calcium and other minerals from the water that evaporates - that's how distillation works to remove minerals dissolved in the water - works the same for tropical fish tank water, softens it - but you then must add back the metabolically necessary minerals. Do NOT try Tropical fish in your kettle, however ! Bob C.
You never know, they might be tasty, but most of them are too small to make much more than a snack.