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Magnesium Sulfate upper limit

Discussion in 'Advanced Strategies and Fertilization' started by Bill, May 12, 2005.

  1. Bill

    Bill Lifetime Charter Member
    Lifetime Member

    Jan 23, 2005
    Likes Received:
    I have a 120g heavily planted tank with discus in it.

    A couple of the discus are bloated and they need to be treated with Magnesium Sulfate.
    The treatment is 1-2 teaspoons for every 10 gal of water.

    My question is can I treat them with this much Magnesium Sulfate in the tank or will it harm my plants at such a high dose?

  2. Laith

    Laith Lifetime Charter Member
    Lifetime Member

    Jan 24, 2005
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    Re: Magnesium Sulfate upper limit

    1 tsp per 10g will add around 14mg/l to your tank. 2tsp per 10g will add around 28mg/l.

    The lower level shouldn't be too much of a problem. Not sure about the higher level but I don't think it'll harm. Maybe someone can give another opinion?

    It will raise your GH by 4 to 8 degrees (if I remember the calculation correctly!).

    First I've heard of using MgSO4 to treat fish.

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