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post #1 of 18 (permalink) Old 08-07-2012, 04:12 PM Thread Starter
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nitrate

so I am doing EI dosing with micro & macro products from GLA. My dosing raises my nitrates higher then I would like for the fish. If I want to reduce the amount of KNO3 in the mix do I need to add more KH2PO4 or K2SO4 to make up for the reduction in Potassium? If so how do I calculate this? thanks
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post #2 of 18 (permalink) Old 08-07-2012, 05:17 PM
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post #3 of 18 (permalink) Old 08-07-2012, 07:03 PM
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I would not increase the phosphate. If fish food is part of the reason the nitrate is too high, then the fish food is also supplying a fair amount of phosphate.
Just increase the K2SO4.
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post #4 of 18 (permalink) Old 08-07-2012, 08:02 PM Thread Starter
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thanks guys
I thought the DIY sticky said not to use the K2SO4?
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post #5 of 18 (permalink) Old 08-07-2012, 08:08 PM
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Quote:
Originally Posted by mcaquatic View Post
I thought the DIY sticky said not to use the K2SO4?
K2SO4 is optional. EI used to include it, now it has it as optional. I still dose it since I started with EI many years ago when K2SO4 was part of the regular program and it's always worked well for me. I figure if it's not broken, there's no need to fix it.

But if your potassium is too high, then don't dose it. None of the fert regimen is carved in stone.

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post #6 of 18 (permalink) Old 08-07-2012, 10:16 PM Thread Starter
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thanks. I also think I need to increase phosphates bc I am getting green spot algae on one of my anubias.

For the calculator you gave me. What product do I choose for the green leaf aquatics green fert package?

Last edited by mcaquatic; 08-07-2012 at 10:17 PM. Reason: more info
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post #7 of 18 (permalink) Old 08-08-2012, 01:52 AM
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On the calculator, when you click the "diy" option, you'll be presented with a list of ferts from which you can choose. Just pick whichever fert you're interested in, such as K2SO4.

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post #8 of 18 (permalink) Old 08-10-2012, 03:44 AM Thread Starter
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perfect thanks
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post #9 of 18 (permalink) Old 08-19-2012, 08:15 PM Thread Starter
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Complexity I just started playing with the DIY calculator. It is really good. Is there any rule of thumb I can follow to guess how many grams or mg or in say a tablespoon or teaspoon? I don't really want to run out and get a gram scale thanks - never mind found it in a sticky

Also how much k2SO4 do you need to add to a 90g to supplement Potassium? I am not longer using KNO3, so i want to make up for the lost potassium with k2SO4. thanks
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post #10 of 18 (permalink) Old 08-20-2012, 12:48 AM
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I've tried to find a source that would say now many grams are in a teaspoon of KNO3, but because everyone measures slightly differently, the weights are slightly off. But what I've found is one teaspoon of KNO3 is around 5.2g (Wet) to 5.6g (Rex), depending on the source as noted ("Wet" and "Rex" are the people's IDs, not saying the KNO3 is wet with water).

It's funny that the charts for EI dosing skip over the 80-100g tanks! However, using the charts for the tanks listed below and above, it's easy to determine the dose. What I came to was 3/8 tsp 3x weekly for EI dosing.

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post #11 of 18 (permalink) Old 08-20-2012, 05:13 AM Thread Starter
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great thank you
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post #12 of 18 (permalink) Old 08-22-2012, 07:52 PM
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Is there an article were I could more reading on this subject.. Iwas thrown off quick.. Great calculator though.
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post #13 of 18 (permalink) Old 08-22-2012, 08:04 PM
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Specifically what information are you wanting in the article? EI dosing, nitrates, or what?

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post #14 of 18 (permalink) Old 08-23-2012, 12:01 AM
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I'll start with nitrates.. It'll Really help out Thanks..
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post #15 of 18 (permalink) Old 08-23-2012, 12:24 AM
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I'm still not sure what you're looking for, but maybe this will help. There are a whole lot of articles about growing aquatic plants here: http://www.aquabotanic.com/?page_id=9

You may want to start with the one about The Estimated Index-Aquarium plant fertilization: http://www.aquabotanic.com/?p=1044

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