Making up stock solutions - The Planted Tank Forum
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post #1 of 2 (permalink) Old 12-08-2004, 01:20 PM Thread Starter
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Making up stock solutions

Hi I have been using the Kent Nitrate , Phosphate and Potassuim and have now bought the powder form from Garden direct
I have Potassuim phosphate (phospate of potash )
Potasssium Nitrate
sulphate of potash potassuim oxide K2o 50%
can any one tell me how much of these to use to make a solution the same stength as the Kent liquids
the Potassuim K is 5% soluble potash
the Nitro plus is 1 % total nitrogen
the phos is 0.35% total phosphate
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post #2 of 2 (permalink) Old 12-08-2004, 01:26 PM
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What I suggest you do is go to and download the Windows version of Chuck Gadd's calculator and play around with it and find a solution that fits your needs.

I can tell you that most of us dose potassium in a dry form and many of us dose KNO3 the same way on tanks larger than about 20 gallons.
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