Discus and Water Changes

[Delphinus]

Are Discus particularly hugely sensitive to water quality? Why would they need daily water changes, is it that they cannot tolerate even a hint of nitrate?

I know (or think) that they need soft water and slightly acidic, but I don't know anything else. I heard some people filter their discus water with peat? It seems to give the water a tea colour (must be tannins).


I sure do like the look of discus ... very pretty fish. They sure do sound high-needs though!