TPN short.

Nick16

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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?)
 

scottturnbull

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

This is probably the thread you are referring to.
 

Nick16

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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?
 

Steve Smith

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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+
 

scottturnbull

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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'.
 

Nick16

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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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