EI Dosing - The Planted Tank Forum
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post #1 of 21 (permalink) Old 08-07-2011, 10:23 AM Thread Starter
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EI Dosing

Hi all, what will happen if i dont do a weekly water change to re set the tank with EI Ferts??

Just Plantin' and prayin'

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post #2 of 21 (permalink) Old 08-07-2011, 10:49 AM
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The purpose of the water change at the end of the week in an EI routine is to 'reset' the available nutrients in the water that wasn't consumed by the plants. Please correct me if I'm wrong; that's how I understand it.

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post #3 of 21 (permalink) Old 08-07-2011, 10:51 AM Thread Starter
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erm, thanks but i did kinda say that, im wondering what happens if you dont do it weekly...?
Does it cause algae or become toxic...???

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post #4 of 21 (permalink) Old 08-07-2011, 11:53 AM
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Sorry didn't fully read it.

One of my 2.5 has an EI style routine, but within the last month, I haven't changed the water. GSA and GDA on the glass. My conclusion is excess nutrients = algae bloom. Doesn't seem to be toxic because my cherries are still alive and acting normal.

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post #5 of 21 (permalink) Old 08-07-2011, 01:58 PM
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Following the full EI dosing schedule as it's presented in basic format I'd think the excess would become very high in even 2 weeks but I've yet to read any reports of a fish kill. If your not able to do the scheduled change why not just cut back a bit on the dosing?


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post #6 of 21 (permalink) Old 08-07-2011, 03:19 PM Thread Starter
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Its not that i cant do the change its more that i would like the knowledge. If im running a routine i would like to know in advance what the consequences of failing to complete the routine would be.
Fore warned is fore armed!!!

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Last edited by eser21; 08-07-2011 at 06:58 PM.
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post #7 of 21 (permalink) Old 08-07-2011, 04:29 PM
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Eventually you'll reach toxic levels. The water change is essential to the EI method.
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post #8 of 21 (permalink) Old 08-07-2011, 07:02 PM Thread Starter
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Hmm, this hasnt scratched my itch... has anyone tried only bi weekly changes to see if it changes how EI works??
I know it sounds stupid but when i get things in my head i have to poke it till it bleeds and i have a definitive answer.. lol
I know that EI is a proven method and Tom Barr took what im sure was a long time to refine the process im just curious....

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post #9 of 21 (permalink) Old 08-07-2011, 07:10 PM
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Quote:
Originally Posted by eser21 View Post
Hmm, this hasnt scratched my itch... has anyone tried only bi weekly changes to see if it changes how EI works??
I know it sounds stupid but when i get things in my head i have to poke it till it bleeds and i have a definitive answer.. lol
I know that EI is a proven method and Tom Barr took what im sure was a long time to refine the process im just curious....
sounds like an experiment....you should get on that and let us know what happens.


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post #10 of 21 (permalink) Old 08-07-2011, 07:14 PM Thread Starter
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sounds like an experiment....you should get on that and let us know what happens.
Hahaha, maybe. Im not so sure im ready to risk my tank right now, i just got to a point im happy...ish. Still got plans lol

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post #11 of 21 (permalink) Old 08-07-2011, 07:36 PM
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You can see what will occur ppm's wise...............:

DIY ferts for dry and solutions:
http://calc.petalphile.com/

Graphing:
http://ei.petalphile.com/

Plug some no#'s into the graphing and see.

You'd still need to relate this data to toxicity, of which we simply do not know what the toxic ranges are for virtually all species, we know what they are not..........which is well within manageable levels.

Even if you dose 2-3x a week and do a water change once a month.

My Example:






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post #12 of 21 (permalink) Old 08-07-2011, 07:41 PM
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you can skip a few day of dosing if you're too lazy to change the water. My jungle tank consume quite a bit of nutrients. If I don't dose for a few days it would exhaust all of the nutrients.


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post #13 of 21 (permalink) Old 08-07-2011, 07:52 PM
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Quote:
Originally Posted by plantbrain View Post
Even if you dose 2-3x a week and do a water change once a month.

My Example:

When I start EI dosing I'm hoping to do 2-3 a week and water change 1-2 times a month.

Beautiful tank Tom


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post #14 of 21 (permalink) Old 08-07-2011, 07:56 PM
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the way i understand. EI is relative to your needs. its adjustable. estimative. "oh i think i need more calcium ill just throw more in..." highern utrients dont seem to cause algae problems, its unhealthy plants IMO.. will you eventually build up toxic levels??? maybe, depends on ur plant load i would imagine. however... if ur have a PERFECTLY balanced setup it could take months before u need to do a change.. start testing your water and see what happens.. 2-3 x the recommended dosage levels dont hurt anyone

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post #15 of 21 (permalink) Old 08-07-2011, 08:26 PM Thread Starter
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Quote:
Originally Posted by plantbrain View Post
You can see what will occur ppm's wise...............:

DIY ferts for dry and solutions:
http://calc.petalphile.com/

Graphing:
http://ei.petalphile.com/

Plug some no#'s into the graphing and see.

You'd still need to relate this data to toxicity, of which we simply do not know what the toxic ranges are for virtually all species, we know what they are not..........which is well within manageable levels.

Even if you dose 2-3x a week and do a water change once a month.

My Example:

First off that is an amazing looking tank!!
Thanks for the calculators, i will have fun with that over the coming days....
Hope you dont think a noob aquarist from a little island is questioning your well thought out and proven fert program
Im thinking i might reduce my dosing to 3-4 days just because i find it difficult to do the change on the same day each week.

Now Tom if you can just write down a program to creating a tank like this then we will all be happy!!

How is it soo LUSH? Puts my feet firmly back on the ground!

Thanks again

Just Plantin' and prayin'

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