The Custom Micro Mix Thread - Page 95 - The Planted Tank Forum
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post #1411 of 1423 (permalink) Old 03-23-2020, 04:54 PM
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Originally Posted by Grobbins48 View Post
Looking to place an order for some more macros, and stated to think about iron in my micros.

Who is using an iron mix in their micros, with both ferrous gluconate and DTPA? Anyone think it may be worth it to add both into my custom micros that run on a daily autodoser?
This is actually what Ive been tinkering with lately. Been using both for about 3 months. Most plants dont notice but it seemed to really help a couple species.

3x per week

Fe dtpa - .1
Fe gluconate - .06
Mn - .045
B - .037
Zn - .035
Cu - .0025
Mo - .0013
Ni - .0003


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post #1412 of 1423 (permalink) Old 03-23-2020, 04:57 PM
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Quote:
Originally Posted by burr740 View Post
This is actually what Ive been tinkering with lately. Been using both for about 3 months. Most plants dont notice but it seemed to really help a couple species.

3x per week

Fe dtpa - .1
Fe gluconate - .06
Mn - .045
B - .037
Zn - .035
Cu - .0025
Mo - .0013
Ni - .0003
Well, that is enough for me to give it a try. Added it to the cart!



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post #1413 of 1423 (permalink) Old 03-23-2020, 08:02 PM
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Quote:
Originally Posted by Grobbins48 View Post
Looking to place an order for some more macros, and stated to think about iron in my micros.

Who is using an iron mix in their micros, with both ferrous gluconate and DTPA? Anyone think it may be worth it to add both into my custom micros that run on a daily autodoser?
I'm running both:

Ferrous Gluconate via SeaChem Iron: 0.02 ppm daily
DTPA Fe(11%): 0.07 ppm daily

Seems to be working out well.


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post #1414 of 1423 (permalink) Old 04-28-2020, 10:19 AM
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What scales are you all using? Iím finding it difficult to find a scale that will accurately measure .003g of zinc for a 500ml solution.


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post #1415 of 1423 (permalink) Old 04-28-2020, 12:28 PM
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What scales are you all using? Iím finding it difficult to find a scale that will accurately measure .003g of zinc for a 500ml solution.


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Either increase your container size, or place a small weight on the scale, tare it, and then measure out 0.003g.

"No Ice? Just Freeze Some Water"

My 30g (25g after learning how a tape measure works) Journal:
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post #1416 of 1423 (permalink) Old 04-28-2020, 08:02 PM
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So if I make a gallon itís a lot easier to manage. Will ascorbic acid keep the solution usable for 6-7 months? (I have potassium sorbate as well for fungal control)


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post #1417 of 1423 (permalink) Old 04-28-2020, 08:42 PM
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Originally Posted by Sam the Slayer View Post
So if I make a gallon it’s a lot easier to manage. Will ascorbic acid keep the solution usable for 6-7 months? (I have potassium sorbate as well for fungal control)


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It should fine that long with ascorbic acid and probably a lot longer as long as you're using distilled/RO water and keep it away from very much light.

Im curious what recipe you're using that would call for 3 mg of Zn, did I understand that correctly?

And if the recipe only calls for that much Zn how in the world are you measuring the smaller stuff like Mo Cu and Ni?? Sure you didnt miss a zero or two somewhere?


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post #1418 of 1423 (permalink) Old 04-28-2020, 09:12 PM
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The Custom Micro Mix Thread

I may have I will double check with Rotala again. Itís just your recipe that you sent me for a 500 mL bottle 20 ml dose at .1 fe so maybe I did miss it. Do you have a scale that measures accurately at the 1 mg level? Are you making larger solutions yourself?

Edit:
Wow screwed that up after rechecking I converted 243mg to 2.43mg and rounded up to 3mg lol. This should be easier now lol.
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post #1419 of 1423 (permalink) Old 04-28-2020, 10:25 PM
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I was dosing this "micros" recipe 3x/week:

Code:
In 500ml soln where 10ml treats 30 gallon tank:
        PPM   Grams  Source
citric acid   0.45
Fe EDTA .1    42.37  AFMM: CSM+B
Fe Gluc .096  54.6ml Flourish Iron
B       .037  .6     H3BO3 (supplement AFMM CSM+B)
Cu      .0014   -    AFMM: CSM+B
Mn      .029    -    AFMM: CSM+B
Mo      .0008   -    AFMM: CSM+B
Ni      .0003 .0075  NiSO4.6H2O (10x, sample)
Zn      .0057 .38    ZnSO4.H2O
NO3     1.13    -    AFMM: KNO3
K       1.74    -    AFMM: K2SO4
Mg      0.2     -    AFMM: MgSO4
I made this recipe when trying to "make it work" with what I had -- a pound of AFMM which contains CSM+B, according to the AF site. Neither Zorfox nor Rotala Butterfly list B when calculating results of AFMM, so I reverse-engineered that number somehow to tell me to add only 0.6g H3BO3.

I say "10x, sample" for Ni because I don't have a way to accurately measure .0075g of anything. I measure (about) .075, dissolve it in RO water, and add 1/10 of that to my bottle.

I had read quite a bit about the potential inconsistencies about CSM+B, and it had been in the back of my head for some time. Last week, I read this excerpt from @Immortal1 which summarized all the other things I've read/thought about it, and it sealed the deal for me:
Quote:
Originally Posted by Immortal1
... imaging mixing up a dump truck size container of dry nutrients for industrial use. Then, stir it up and scoop out 1 cup of dry mix. And guarantee you have exactly the correct amount of each item. Just can't believe they get it right every time. Yes, the CSM+B has worked better than nothing for many years. But, we can certainly do better.
I completed my collection of micros thanks to @burr740 of course, and this week I started dosing this recipe. I only made 200ml because I really love measuring tiny quantities of Nickel Sulfate Hexahydrate almost as much as I love saying Nickel Sulfate Hexahydrate:

Code:
In 200ml soln where 10ml treats 30 gallon tank:
        PPM   Grams  Source
citric acid   .45
Fe DTPA .11   2.27   Fe DTPA 11%
Fe Gluc .07   15.9ml Flourish Iron
B       .037  .48    Boric acid H3BO3
Cu      .0034 .03    CuSO4.5H2O
Mn      .051  .356   MnSO4.H2O
Mo      .0017 .0097  Na2MoO4.H2O
Ni      .0007 .0071  NiSO4.6H2O (10x, sample)
Zn      .04   .256   ZnSO4.H2O
I run the same micros in my 3 tanks: a 10 with Landen soil, 20L with Fluval Stratum & too much Seiryu stone, and a 36BF with Flourite black over dirt (soon to be Landen, but the price went up another $4 per bag today).

I was originally trying to get close to one of the many micros recipes that burr threw down because that's the journal I was reading at the time, and I'm impulsive. But I think that was a mistake because I'm using RO water while he uses tap. This time, I looked through this thread and the Share your dosing thread, and I worked out something closer to fellow RO users @Greggz / @Ken Keating1 bottle than a burr bottle.

It's a new start for me (the real reason I only made 200ml). I'm 3 days in, and I haven't killed all of burr's plants yet -- I've only melted a few Lud Reds, and the others are throwing down roots and looking good.

Thanks all of you for sharing your recipes and lessons learned!
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post #1420 of 1423 (permalink) Old 04-28-2020, 10:57 PM
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Originally Posted by Sam the Slayer View Post
I may have I will double check with Rotala again. Itís just your recipe that you sent me for a 500 mL bottle 20 ml dose at .1 fe so maybe I did miss it. Do you have a scale that measures accurately at the 1 mg level? Are you making larger solutions yourself?

Edit:
Wow screwed that up after rechecking I converted 243mg to 2.43mg and rounded up to 3mg lol. This should be easier now lol.

lolol, it happens to the best of us
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post #1421 of 1423 (permalink) Old 05-03-2020, 11:20 PM
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The Custom Micro Mix Thread

...

Last edited by Sam the Slayer; 05-08-2020 at 09:42 PM. Reason: Moved ? To its own thread
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post #1422 of 1423 (permalink) Old 05-10-2020, 03:44 AM
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Quote:
Originally Posted by burr740 View Post
This is actually what Ive been tinkering with lately. Been using both for about 3 months. Most plants dont notice but it seemed to really help a couple species.

3x per week

Fe dtpa - .1
Fe gluconate - .06
Mn - .045
B - .037
Zn - .035
Cu - .0025
Mo - .0013
Ni - .0003
would you happen to have a list of which plants prefer the gluconate? I have a sneaking suspicion that glandulosa might be one but I haven't used that plant in a long time


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post #1423 of 1423 (permalink) Old 05-10-2020, 05:11 AM
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would you happen to have a list of which plants prefer the gluconate? I have a sneaking suspicion that glandulosa might be one but I haven't used that plant in a long time

Dont have a list but it seemed to particularly help some of the typical Fe indicator plants, limno sp for example. They can get right with lower overall levels. But I also tweaked B Mn and Zn down a little in the process. I'd done similar levels in the past with all dtpa, not a whole lot of difference really. I just suspect its more efficient, seems to work a little better but I havent tested stringently enough to say that for sure.
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