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Potassium Sulfate | K2SO4 | 1lb


Product Description

Potassium Sulfate - K2SO4   0-0-52

Potassium Sulfate (K2SO4) is a source of Potassium (K) necessary for protein synthesis and for plants to metabolize Iron (Fe).  Sulfur (S) is essential for root development. Potassium Sulfate is useful alternative to kcl when chloride sensitive plants are present.


  • Dosing:  1/16th tsp into 10 gallons will add 5ppm potassium

*Amounts above are for reference only.  Your planted aquarium may need more or less depending on many factors.




Guaranteed Analysis:

Soluble Potash(K2O) ............. 52%

Sulfur(S) ............................  18%



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Product Reviews

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Showing reviews 1-10 of 11 | Next

  1. Works great 5 Star Review

    Posted by on Jan 28th 2018

    Just what I was looking for to raise K without hitting N as well.

  2. Add potassium without bumping the nitrate as well! 5 Star Review

    Posted by on Dec 26th 2017

    I like the ability to add just the potassium when I already have an excess of nitrate. Just so simple and so cheap to test when unsure of what the deficiency may be. Excellent price, service, and speed make it a great value!

  3. Best value for full choice in dosing 5 Star Review

    Posted by on Oct 2nd 2017

    Dry ferts are by far the cheapest, store very easy and last a long time but the best part is that I can adjust exactly as each tank needs rather than adding parts I don't want to tanks which are already high in those.

  4. awesome 5 Star Review

    Posted by on Sep 20th 2017

    Great product. Customer service is way above and beyond any other.

  5. great product 5 Star Review

    Posted by on Sep 4th 2017

    This ia a great product and cant go wrong with any of their fertilizers. Great price and fast great service.

  6. Cant beat it. 5 Star Review

    Posted by on Apr 30th 2017

    Good product. Nice packaging. Swift delivery.

  7. Great Value 5 Star Review

    Posted by on May 22nd 2016

    A whole pound for $3 is very reasonable and what you get looks to be without impurities. I ordered all my fertilizers at once to save on the shipping

  8. Better than Others 5 Star Review

    Posted by on Apr 21st 2016

    There are several places to buy dry fertilizers. Nlocg is the lowest price by far. Well packaged, and great customer service. Can't go wrong

  9. great product 5 Star Review

    Posted by on Dec 29th 2015

    I've ordered dry fertz here a few times, shipping is always quick and well packaged.
    My plants look great.

  10. Great product with excellent prices 5 Star Review

    Posted by on Oct 7th 2015

    I really recommend this product. All of my plants are doing GREAT!!
    Nick is very knowledgeable and very helpful. I will be purchasing all my ferts here in the future.
    I am a happy customer :)

Showing reviews 1-10 of 11 | Next

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