Seachem Prime Dosage

  1. LockedBox

    LockedBox Member Member

    Having heard all of the glowing reviews here I bought myself a bottle of prime. I got myself the 250ml bottle because it had the best value of the 4 sizes, but the label only gives usage directions for very large amounts of water. How much prime should I add to 16L of water during my water changes?

  2. CichlidSWAGA

    CichlidSWAGA Well Known Member Member

    16L is 4.22 gallons for every 5 gallons i fill up to the first line in the cap which is right around 1-2 ml

    thats one reason its so great you don't have to use much
  3. Aquarist

    Aquarist Fishlore Legend Member

    Good morning,

    :animal0068:I have moved your thread from Cleaning and Maintenance to Aquarium Water/Water Conditioners section of the forum.


  4. OP

    LockedBox Member Member

    Oh, I didn't realize there was a section for that. Sorry.
  5. Aquarist

    Aquarist Fishlore Legend Member

    No problem :)

  6. c

    catsma_97504 Fishlore Legend Member

    For smaller volumes of water Prime is dosed at 2 drops per gallon or 3.79 liters. With 16 liters, that works out to 8 or 9 drops per water change.