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Thread: Dosing for potassium sulphate?

  1. #1
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    Dosing for potassium sulphate?

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    Are there any ill effect if i dose all one week worth of k2SO4? I am dosing 10 teaspoon for 300l tank on water change weekly..

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    Bubble, you may already know this, but just relinking for your info. If you want to make sure without getting any kits to help you with, try toms barr EI method of dosing, worth a read.

    http://www.barrreport.com/estimative...ive-index.html

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    Quote Originally Posted by o2bubble View Post
    Are there any ill effect if i dose all one week worth of k2SO4? I am dosing 10 teaspoon for 300l tank on water change weekly..
    10 tsp of K2SO4 in 300L water is 90ppm K from Chuck's website.
    I think not necessary dose so much. For me, I usually target 10ppm. And once a week.
    koah fong
    Juggler's tanks

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    I am targeting 30ppm and ei method suggests dosing 3 times this dosage per week. What i do is lazy method of dosing all these 3 doses together instead of separtely.

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    I'll go with that method as Im also very lazy lol.

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    Quote Originally Posted by juggler View Post
    10 tsp of K2SO4 in 300L water is 90ppm K from Chuck's website.
    I think not necessary dose so much. For me, I usually target 10ppm. And once a week.
    Hi. Can we just follow Dr Mallick's written on the instruction, 10g for 100L once a week? Will it be more if we follow the instruction? Thanks!

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    Quote Originally Posted by blue33 View Post
    Hi. Can we just follow Dr Mallick's written on the instruction, 10g for 100L once a week? Will it be more if we follow the instruction? Thanks!
    I entered Dr Mallick's figures into Chuck's calculator and it gave 26ppm K. Is it within your limit?
    koah fong
    Juggler's tanks

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    Quote Originally Posted by juggler View Post
    I entered Dr Mallick's figures into Chuck's calculator and it gave 26ppm K. Is it within your limit?
    Where can i get Dr Mallick's figures and how you get 26ppm K? Cos initially i use Chuck's calculator by using how many teaspoon will get me the figures, but my plant dont seem growing and it show signs of potassium/K2SO4 deficency. So i guess i cannot use how many teaspoon rather than actual Dr Mallick's figures when keying in Chuck's calculator. . Need alot of your expertise in this area. Much appreciate! Thanks!

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