Discussion in 'Plant Fertilizers' started by TagTeam, Jun 20, 2018.

  1. TagTeamValued MemberMember

    How much Flourish Excel should I be using daily for a 20 gallon tank?
  2. RaizinhellValued MemberMember

    None! Unless you're using it to spot treat algae
  3. TagTeamValued MemberMember

    Why is that?
  4. RaizinhellValued MemberMember

    Excel is glutaraldehyde. It is a biocide. Long term use is harmful to both plants and fish. Do not use!
  5. -Mak-Fishlore VIPMember

    The dose on the bottle says 1 cap (5mL) for every 50 gallons, so for a 20 gallon it's 2 mL.

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