Estimative Index Accumulation Graph - The Planted Tank Forum
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post #1 of 10 (permalink) Old 07-21-2020, 12:27 AM Thread Starter
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Estimative Index Accumulation Graph

Can someone share a link to a line graph that shows the accumulation of nutrients over time for estimative index dosing? I can't find it for the life of me.

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post #2 of 10 (permalink) Old 07-21-2020, 02:01 AM
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Hi @mossman77,

Here you go! https://rotalabutterfly.com/accumulation-calculator.php

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post #3 of 10 (permalink) Old 07-21-2020, 04:08 AM Thread Starter
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Originally Posted by Seattle_Aquarist View Post
Thank you for the link. However, I meant a graph that shows the ideal EI levels over several weeks of dosing. A generic graph in other words.

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post #4 of 10 (permalink) Old 07-21-2020, 08:51 AM
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Quote:
Originally Posted by mossman77 View Post
Thank you for the link. However, I meant a graph that shows the ideal EI levels over several weeks of dosing. A generic graph in other words.
When you figure say your NO3 dose look at graph at bottom. The max is 30ppm, once you start going above that high range end you may start having nutrient toxicity problems. Test your water for nitrate and phosphate at beginning of week say 1hr after 1st dose, hit your targets then at end of week measure both those to see accumulation. If your levels are at least staying flatlined across week or slightly going up your fine. If your levels have dropped your not dosing enough or your not dosing often enough.



Build your solutions to EI ratios, find amount to dose that keeps up in your tank but alway keep macro and micro dosing proportions inline, if your N or P are falling behind you can be pretty sure other micros are also falling behind. If you increase your macro by 10% per week, do exact same for your micro dosing. Then once you got that semi-zeroed in stick with it for a few weeks and observe for signs of say K, Ca, Mg or Iron deficiency. If see what you think are signs of any those being deficient correct. Might be as simple as adding a tiny bit of Equilibrium to your change water, it will add in K, Ca, Mg, Fe, Mn. Might only need to add some Epsom salt (Mg Sulfate) tank/change water.

Thing about that accumulation calc is it gives what “should” be your accumulation of any given element across whatever timeframe you put in. But that doesn’t doesn’t guarantee you anything. Choice/type of plants, planting density, circulation patterns, light/CO2 levels and consistency, even cleaning/maintenance effect what you need to do.

Many people underestimate importance of what doing proper change water prep, sucking up waste, maybe using a turkey baster to blast stuff up, cleaning filter pads and doing a light/constant pruning routine does for your tank to help your tank run smoothly. Managing DOC/waste is equally as important as getting over obsessed with light/CO2 and nutrient levels.

Last edited by DaveKS; 07-21-2020 at 09:02 AM. Reason: Typo
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post #5 of 10 (permalink) Old 07-21-2020, 06:47 PM Thread Starter
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Quote:
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Quote:
Originally Posted by mossman77 View Post
Thank you for the link. However, I meant a graph that shows the ideal EI levels over several weeks of dosing. A generic graph in other words.
When you figure say your NO3 dose look at graph at bottom. The max is 30ppm, once you start going above that high range end you may start having nutrient toxicity problems. Test your water for nitrate and phosphate at beginning of week say 1hr after 1st dose, hit your targets then at end of week measure both those to see accumulation. If your levels are at least staying flatlined across week or slightly going up your fine. If your levels have dropped your not dosing enough or your not dosing often enough.



Build your solutions to EI ratios, find amount to dose that keeps up in your tank but alway keep macro and micro dosing proportions inline, if your N or P are falling behind you can be pretty sure other micros are also falling behind. If you increase your macro by 10% per week, do exact same for your micro dosing. Then once you got that semi-zeroed in stick with it for a few weeks and observe for signs of say K, Ca, Mg or Iron deficiency. If see what you think are signs of any those being deficient correct. Might be as simple as adding a tiny bit of Equilibrium to your change water, it will add in K, Ca, Mg, Fe, Mn. Might only need to add some Epsom salt (Mg Sulfate) tank/change water.

Thing about that accumulation calc is it gives what “should” be your accumulation of any given element across whatever timeframe you put in. But that doesn’t doesn’t guarantee you anything. Choice/type of plants, planting density, circulation patterns, light/CO2 levels and consistency, even cleaning/maintenance effect what you need to do.

Many people underestimate importance of what doing proper change water prep, sucking up waste, maybe using a turkey baster to blast stuff up, cleaning filter pads and doing a light/constant pruning routine does for your tank to help your tank run smoothly. Managing DOC/waste is equally as important as getting over obsessed with light/CO2 and nutrient levels.
Thanks for the tips. Measuring the nitrate accurately is my hang up. I can't distinguish between anything over 20ppm because the colors aren't different enough. Wish API would fix this. If I hold the test tube up to a light, it looks like 20ppm, but if I hold it against the card, it looks like 40ppm. Frustrating.

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post #6 of 10 (permalink) Old 07-21-2020, 06:59 PM
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Quote:
Originally Posted by mossman77 View Post
Thanks for the tips. Measuring the nitrate accurately is my hang up. I can't distinguish between anything over 20ppm because the colors aren't different enough. Wish API would fix this. If I hold the test tube up to a light, it looks like 20ppm, but if I hold it against the card, it looks like 40ppm. Frustrating.
The Saliert test kit is a little easier to distinguish levels. The good news is that if it's 20 or 40ppm it probably won't make much of a difference if the no3 is from dosing.
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post #7 of 10 (permalink) Old 07-21-2020, 07:43 PM
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+1 for Salifert Nitrate test kit. Very good for reading Nitrate 2 to 20 ppm and beyond!
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post #8 of 10 (permalink) Old 07-21-2020, 11:46 PM Thread Starter
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Just ordered one. Thanks!

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post #9 of 10 (permalink) Old 07-22-2020, 01:08 AM
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I don't know if this is what you are looking for or not.

I put together a spread sheet that shows how EI accumulates over time based on dosing and water changes. You can also add in fish waste and plant uptake. Sometimes it helps to see how EI works.

Here is an example dosing 15 ppm NO3 weekly. The spreadsheet is in the link to a Google Drive in my signature and anybody is welcome to download it and use it as they will.

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post #10 of 10 (permalink) Old 08-05-2020, 06:33 PM Thread Starter
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Quote:
Originally Posted by Greggz View Post
I don't know if this is what you are looking for or not.

I put together a spread sheet that shows how EI accumulates over time based on dosing and water changes. You can also add in fish waste and plant uptake. Sometimes it helps to see how EI works.

Here is an example dosing 15 ppm NO3 weekly. The spreadsheet is in the link to a Google Drive in my signature and anybody is welcome to download it and use it as they will.


Yes. That was exactly what I was looking for. Thanks!

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