Is this seachem flourish chart equivalent to EI - The Planted Tank Forum
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post #1 of 5 (permalink) Old 01-18-2016, 11:18 PM Thread Starter
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Question Is this seachem flourish chart equivalent to EI

I was dosing exactly this chart to my planted thank thinking that it was the same as EI dosing. But now I'm really confused.
Is this the same as EI dosing?
Feel the iron is excessive and the Macro (NPK) really super low unless my math are missing two ceros.
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post #2 of 5 (permalink) Old 01-18-2016, 11:59 PM
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No those levels are far below levels suggested in EI dosing, for example, you would need to dose 35ml of flourish comp per 60g to reach suggested EI levels(or close to). That chart suggests one cap full which I assume is 5ml(this is a guess, im not completely sure).
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post #3 of 5 (permalink) Old 01-19-2016, 10:26 AM
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No that chart is nowhere near the standard set by EI dosing. In fact, it seems that the chart is telling you to dose a lot less than the EI way. In terms of excessive nutrients, dosing a bit too much is not an issue. The best way to dose, in my honest opinion, is via the EI method.

You can search for EI Dosing Calculators online and that'll give you a breakdown of what you need, when to dose and how much to dose.

Using premade branded fertilisers works out to be a lot more expensive (and certainly overpriced!) than dosing the EI way. Buy your own dry powders then make up the solutions and away you go!

Sorry, I kinda went off on a tangent then...
I hope this helps,
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post #4 of 5 (permalink) Old 01-19-2016, 10:36 AM
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This calculator will give you an idea how much seachem liquids = EI levels.

Enter your tank volume, tick "premixed", then select a product from the drop down menu.

Also it's probably a good idea to be sitting down when you do it...because you may be in for quite a shock.

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post #5 of 5 (permalink) Old 01-19-2016, 01:35 PM
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Dosing those low levels, plus fish food, may give you enough ferts that you can get by with less or smaller water changes. The only way to know is to test the water. If the NO3 rises slowly through the week from about 10-20ppm, then a water change resets that to 10ppm (50% water change) that is a reasonable dosing amount for how much the plants use, and the water changes you are willing to do.
If the NO3 does not rise that fast, but does go up, then the plants are using more of the nitrogen, and all ferts, so you can do smaller water changes.

Note that the nitrogen test needs to be read very carefully when you are dosing Seachem Flourish Nitrogen. Some of the nitrogen is in a form that does not show on NO3 tests. Read the label on the bottle and follow the directions about interpreting the test results.
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