Iron & plantex csm-b - The Planted Tank Forum
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post #1 of 6 (permalink) Old 07-14-2017, 09:11 PM Thread Starter
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Iron & plantex csm-b

Is iron and the plantex csm-b the same thing ? And are both good to feed amazon swords?


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post #2 of 6 (permalink) Old 07-14-2017, 10:48 PM
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They are not the same.
Plantex does contain Fe though.
Most people dose CSM+B based on Fe totals.


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Growing is not that difficult.
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post #3 of 6 (permalink) Old 07-15-2017, 06:43 AM Thread Starter
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I am dosing the PPS-Pro but my amazon swords don't seem to be looking that good and also seem to be growing slow. So I spoke to one of the employees at an aquarium store about it and he told me I needed more iron so I also dose a liquid iron but I prefer to mix it myself. The only thing is I don't have any idea where to start or how much of the dry I should add to a liter of water. I have both since I used the calculator on the fert section at the planted tanks website which is where I buy my frets . I need to know a starting point and I can take it from there. How do I check the iron totals to know where I am ?


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post #4 of 6 (permalink) Old 07-15-2017, 08:47 AM
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Outside of a lab analysis you arent going to know how much available Fe there is. You just have to go by how much you are adding.

This is probably a better calculator than the one you're using

https://rotalabutterfly.com/nutrient-calculator.php


Csmb has plenty of Fe unless you're running high light and co2. The calculators defaults to Fe when you run a value for csmb. In a non-co2 tank .1 ppm Fe using csmb, once or twice a week should be plenty. If you're running high light and co2 just calculate for "EI" and dose 3x week along with a 50% water change 1x week.

EDIT: Oh I see you're doing the ppsp thing. Are you dosing the old .1 ppm Fe amount or the new .01? The former should be plenty, the latter may not be


Having said all that, there could be any number of reasons the sword is doing poorly. I wouldnt say they need iron any more than all the other essential nutrients.

If you have an inert substrate like regular gravel or sand, giving it a couple of root tabs might solve the issue. Swords appreciate some nutrients at the roots
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post #5 of 6 (permalink) Old 07-15-2017, 09:20 AM Thread Starter
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I use eco complete as my substrate and yes I use the green element 3w leds in a 72" fixture. There's 112 leds at 6500k light which I run only 6 hours from 4pm to 10pm . I also use osmocoat plus tabs between the swords stuck down into the substrate. I am setup for co2 but I haven't used it in a long because none of my plants require it.


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post #6 of 6 (permalink) Old 07-15-2017, 09:37 AM
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All plants will require co2 using higher light.

It sounds like you have plenty of ferts, and plenty of light. So that only leaves, what? CO2

You can lower the demand for both nutrients and CO2 by lowering the light, the intensity, not the duration.

Think of light as the gas pedal in a car. The more you press it, the more gas you better have in the tank. CO2 and nutrients are the "gas" Light is the accelerator
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