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hma or ro

Discussion in 'Basic Care and Husbandry' started by Jerry1973, Jun 19, 2017 at 12:05 AM.

  1. Jerry1973

    Jerry1973 Member

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    hi all, advice needed.
    test my hma water : ph7.6 , ammonia 0.25ppm, nitrite 0, nitrate 20ppm
    test my ro water: ph 6.0 , ammonia 0, nitrite 0, nitrate 5.0ppm
    so what i should choose for grow my 7cm discus, hma contain trace of ammonia and nitrate or remineral ro?
    thanks
  2. David Flynn

    David Flynn Member

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    If it were me I would go for hma. I am assuming they are not wild discus. At that size they will need big water changes and hma would provide more volume in a 24 hour period. You only need ro if you want to breed (when more mature) or if they are wild but at 7cm I assume they are not. There is a school of thought that claims you don't need to remin ro water because the required minerals come from food and not the water found in their natural habitat.
  3. Jerry1973

    Jerry1973 Member

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    thanks for reply, i understand hma water is good for grow discus, but 20ppm NO3 make me concern, thats mean whatever how much water i changed there always at least 20ppm or more NO3

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