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Children Boogie
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I see a lot of garden fertilizer numbers to be something like 6-22-30

but in an aquarium (for me it has been) 10-2-?

Just curious. I wish there's a cheap way to measure K.
 

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I may be interpreting your question, but even if you had a N-P-K value, it still only a matter of volume/X, greg's stuff is pretty pure, KNO3 for me is (i'm taking a wild guess) almost 50-0-50(not exact).

I guess the more I type the more I am confused as to what your issue is?
 

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For me the I've used a 10-2-20 NPK ratio.
(For frosty I'm not sure of your confusion, I hope this explanation helps 10 ppm N, 2 ppm P, and 20 ppm K, and according to Mr Gadd
KNO3 is K - Potassium 38.7%
NO3 - Nitrate 61.3%)

When I wasn't EIing, I basically used Chuck Gadd's calculator, and dose in the above proportions. the K would be an estimate based on the other 2. If I noticed pinholes, up the K

HTH
Walter
 

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Walter, I think you found us a new verb in the hobby. EIing. LOL, I like it. Or you could just say the EIthing.:smile:
 
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