Confused with making 500mL bottles of CSM+B using Wet's Calculator - The Planted Tank Forum
Old 09-20-2015, 10:03 PM Thread Starter
Planted Tank Obsessed

Join Date: Jul 2005
Location: Silicon Valley
Posts: 413
Confused with making 500mL bottles of CSM+B using Wet's Calculator

I have a 60p tank and I want to use my old ADA 500mL bottles to make solutions of CSM+B. I am using Wet's Calculator but the English is confusing.

I input the following into the calculator:
-18 gallon
-DIY
-Plantex CSM+B
-A solution
-500mL
-5mL
-EI
-3 digitals

To reach your target of 0.5 Fe you will need to add 52.173 grams Plantex CSM+B to your 18gal aquarium to yield:
Element ppm/degree
Fe 0.500
Mn 0.143
Cu 0.007
Mg 0.107
Zn 0.028
Mo 0.004
B 0.061
dGH 0.025

Dose these levels 2-4 times a week for EI. Classic EI depends on good CO2, good circulation, and regular water changes. Light past moderation is not so important.

Is that correct? 52 grams seems like a lot of powder to dissolve into a 500mL bottle. EI states that I need 0.5ppm of Fe but the calculator says I need to dose 5mL of this solution 3-4 a times a week? Thats 3-4 times what is recommended. Am I using this calculator correct?
trckrunrmike is offline

Old 09-20-2015, 10:51 PM
Planted Tank Guru

Join Date: Dec 2012
Location: Hot Springs Ar. 71901
Posts: 5,935
EI is a saturation level of nutrients. So much of each that it theoretically can't run short.
You can go through all that calculating or just go by a list which someone else has already done the calculating for you on.
On this list the amount are meant to be added to a 500ml bottle. He doesn't mention it
and I guess he assumes you already know that the CSM+B goes in a different bottle than the rest of them. But look at the amount on the list for a 20g tank for the CSM+B.
The first number in 5/20 indicates what the size of the dose is.
https://www.plantedtank.net/forums/sh...697&highlight=

The shortest distance between any two points is a straight line...in the opposite direction...
Raymond S. is offline
Old 09-21-2015, 03:10 AM
Planted Tank Guru

Join Date: Jul 2010
Location: Oregon
Posts: 3,008
Those numbers look correct to me.
nilocg is offline

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