TPN short.

Discussion in 'Aquarium Fert Dosing' started by Nick16, 15 Nov 2008.

  1. Nick16

    Nick16 Member

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    a little while ago, i read in a post that TPN was short of an ingrediaent. but i cannot remember what it was. im sure it began with p and the second word may have also began with p. (postassium and/or phospate?)
     
  2. Steve Smith

    Steve Smith Member

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    TPN is basically trace only, so doesn't have NPK (Nitrogen, Phosphorus, Potassium). TPN+ has trace and NPK so is an "all in one" fert.
     
  3. scottturnbull

    scottturnbull Member

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    I think TPN does contain Potassium (K), just not very much.

    This is probably the thread you are referring to.
     
  4. Nick16

    Nick16 Member

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    so i really need to get TPN+
     
  5. Nick16

    Nick16 Member

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    on the AE website there is postassium carbonate, potassium nitrate, and potassium sulpahte. which do i need? is there not an all in one? how much should i dose and can it be mixed up in tap water?
     
  6. Steve Smith

    Steve Smith Member

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    Location:
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    You're looking at dry salts which are used when following the Estimative Index method of fertilising. Take a look in the Fertiliser section (Not dry powders) for all-in-one mixes such as Tropica Plant Nutrition+
     
  7. scottturnbull

    scottturnbull Member

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    It's difficult to answer. How densely are you stocking plants and fish? TPN is probably okay if you have plenty of fish and a fair amount of plants. TPN+ is better if you have little or no fish and lots of plants.

    For dry fertilisers, see the sticky at the top of this section, titled 'EI daily methods or PMDD + PO4'.
     
  8. aaronnorth

    aaronnorth Member

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  9. Nick16

    Nick16 Member

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    thanks, i think i am sorted, just need to invest in the lights and co2 and we are ready to begin!
     

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