Red gills- sulfaplex with cories in the tank?

Discussion in 'Freshwater Fish Disease' started by MuShu, Jun 18, 2016.

  1. MuShu

    MuShuNew MemberMember

    I noticed that some of my freshwater fish have redness around their gills. It's a 29 gallon with mollies, cories, assassin snails, and a tetra (the others kept dying within a day of getting them in the tank.) I have sulfaplex on hand right now. Is that safe for the cories and snails? There are two mollies and a tetra with red gills, and 2 other mollies have been hanging out near the bottom and not really swimming, but not flashing either.

    I should also add that my water parameters are good, it's a planted tank, and I do weekly water changes of 4 gallons with about a gallon added mid-week due to evaporation.
    Last edited by a moderator: Jun 19, 2016
  2. TexasDomer

    TexasDomerFishlore LegendMember

    Can you give exact water parameters for pH, temp, ammonia, nitrites, and nitrates?

    4 gallons out of 29 gallons is pretty small. I'd do at least 50% weekly.
  3. OP

    MuShuNew MemberMember

  4. Shadowfox118Valued MemberMember

    Your tank is not cycled with 0 nitrates

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