White Stuff on my HyDRoCoraALS!!!

Discussion in 'Indoor Marijuana Growing' started by phanny69, Apr 18, 2006.

  1. what is this white stuff on my hydrocorals?? i am runnin a constant drip on deep water horticulture ----

    i need to know.
  2. calcium from hard water most likely
  3. :( is that bad or good?? how do i get rid of it ???
  4. you can prevent it by not using tap water. you can get rid of it by washing it off (if it is, indeed, calcium from hard water)

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