CSM+B and the EI methode - The Planted Tank Forum
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post #1 of 4 (permalink) Old 02-21-2019, 05:43 PM Thread Starter
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CSM+B and the EI methode

Hi All,
Just joined this forum as I was searching for reasons I Just couldn’t get happy with My plantgrowth even tough dosing tons of micro’s and macros. When googling the difference between CSM+B and Tenso cocktail I ended up here.

I am gonne learn a whole lot from Reading All the information here but I am curious.

I have a 700liter aquarium with added CO2. There is enough light and the plants do fine.. however not great..
Ph 6,4/6,8
Kh 4/4,5

I add CSM+B twice a week and My macros three times a week. Starting sunday with friday and saturday doing nothing. Sunday I refresh about 250/300 liters with tapwater.

I Add nothing else as I experienced adding Fe of Ca just gave me algues (maby added 1+1 too fast). As I Said are My plants doing okay yet not great.
Anubias, Echinodorus and wood having some beardalgue
Valisneria getting slimey
Cryptos growing very slow
Various other plants thriving jet do not pearl nor get as big/beautifull as They can be.


Now I wonder. I have Just read multiple threads describing the EI and CSM+B as impotent. This method and the csmb are widely cheered for on various dutch forums and sites.
Are They wrong and is there a way better alternative way or product that may help the not so skilled aquarist getting Better results? A way that doesnt mean measuring everything to detail but a way or product that May jumpstart me getting into the world..
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post #2 of 4 (permalink) Old 02-21-2019, 11:06 PM
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It's very difficult for anyone to help with the information you provided.

What is your lighting? Have any idea of PAR? How many hours?

What is your substrate? What is your GH?

What macros and how much are you dosing? How much CSM+B are your dosing?

Is the pH you list with CO2 or degassed? If it's with CO2, what is your degassed pH reading? What is your peak pH drop? How are you measuring it? Calibrated probe?

Just saying CSM+B might be just fine, but maybe not. Hard to tell without knowing more.

And when you say plants don't get as big and beautiful as they could be, unlikely a change in micros will change that. Better to look at the tank in it's entirety, and get the big things right first.
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post #3 of 4 (permalink) Old 02-21-2019, 11:30 PM
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Assuming it's remineralized RODI water, CSM has very poor metal ratios and dosing excess will result in nutritional disorders.
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post #4 of 4 (permalink) Old 02-21-2019, 11:51 PM
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Tenso has better ratios than csmb but neither is really designed for aquarium use.

Are you dry dosing or making a solution? With csmb especially it's best to make a solution, and make it as concentrated as possible - 5-10 ml doses instead of 30 ml doses, for example. And use 1000 ml container instead of 500.

The idea is to use as much dry powder as you can at one time, which increases the chance of getting the right amount of all the various nutrients. These products are made to treat hundreds or thousands of gallons at a time. They arent made to dole out fractions of a tsp into an aquarium. (although Tenso appears to be better blended)

As for ppm, 1/2 or 1/3 EI for micros would probably work better than full dosing
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