DIY zinc solution?

Sebae

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Hello,

I've done both ATI and triton testing and both have revealed 0 µg/l zinc. I have plenty of zinc gluconate sitting around and was wondering if it would be possible to DIY a solution to bring my levels up to the target value of 4 µg/l.

Would this be a possibility? I certainly don't want to overdose.

Sincerely,

Sebae
 
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Randy Holmes-Farley

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Zinc gluconate is fine if its not a tablet with lots of other stuff in it (if so, we can review those ingredients.

Zinc chloride is a fine thing as well.
 
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Sebae

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Thank you. Unfortunately they are tablets and I will either purchase the Triton supplement or ZnCl going forward. However, for a temporary dose, would it be possible with the tablets? The ingredients are as follows: Zinc gluconate (50 mg) with other ingredients being cellulose, magnesium stearate, silica, and vegetarian coating.
 
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Randy Holmes-Farley

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Thank you. Unfortunately they are tablets and I will either purchase the Triton supplement or ZnCl going forward. However, for a temporary dose, would it be possible with the tablets? The ingredients are as follows: Zinc gluconate (50 mg) with other ingredients being cellulose, magnesium stearate, silica, and vegetarian coating.

I'd dissolve the tablets in RO/DI (for Fergon iron tablets, I soak overnight till the tablet falls apart, shake it up, then let it settle) and let it settle overnight, then use the clear liquid.

The liquid volume will then have close to 50 mg zinc in it.
 

Randy Holmes-Farley

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To add 4 ug/L, you'd dose that 50 mg to 12,500 L, which is likely a lot bigger than your tank.

Dissolve it in 100 mL of RO/DI, then it is 50 mg/100 mL, or 0.5 mg/mL.

One mL will boost 125 L of tank water to 4 ug/L.
 
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jzw

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@Randy Holmes-Farley

randy,

would this be an ok form of zinc chloride?

https://www.amazon.com/HiMedia-GRM6...&qid=1522802729&sr=8-3&keywords=zinc+chloride

thanks so much.
Screenshot_2018-04-03-17-46-58.png
 

Randy Holmes-Farley

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Randy Holmes-Farley

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Zinc chloride is 48.6 zinc by weight.

500 grams thus contains 240 grams of zinc.

If you dissolve that in RO/DI until you get to 1 L of total volume, then each 1 mL will contain 1/1000 of that amount, or 240 mg zinc per mL.

You are going to need a much more dilute solution for dosing.

Do you have a scale to weigh out a portion of the 500 g, or do you want to di it by diluting the solution above again?

Assuming the latter, take 1 mL of the solution (240 mg of zinc) and dissolve it in 1 L total RO/Di water, to give a concentration of 0.24 mg/mL (240 ug/mL).

The total NSW level of zinc is about 6 ug/L in seawater, so if you add 1 mL of this second solution (240 ug) to 40 Liters of seawater, you will add the full NSW level of zinc, 6 ug/L (which may be way more than you'd want to dose, unless the level is zero).
 

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I do like the idea of using the material dry


I wanted to use the zinc for recommendations from the Triton method:


Zn: We recommend the corrective dosage of 1.77 ml for 1 day.
Zn: We recommend a daily maintenance dose of 0.18ml. If this dose is very low, then this can be alternatively be dosed weekly (daily dose x7).



I was considering using the Zn dry so I would not have to store a mixed solution

So If I was to use a scale, food scale, to weigh the Zn thee 240/500 =.48 gram

Corrective dosage: If I want 1.77ml I can do 1.77 x .48 = .8496 gram
Daily Dosage: .18ml I can do .18 x .48 = .0864 or 7 x for one week is .6048 gram


My scale weighs to the gram so I would need to estimate

Would I be playing with fire if I do just a 1 gram corrective dosage?

Also, every 2 weeks .6048 X 2 = 1.2096 just do 1 gram?
Would that stay close to the desired range?


If this is too much estimating do you have any suggestions for a scale that will weigh dry material in a quatity lower than a 1 gram?

Currently I weigh my salt when doing water changes, I use weight to weigh out the Randy 2 part that I use, and any other material that I can use a scale to measure additives.

Thanks
 

LimestoneCowboy

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I do like the idea of using the material dry


I wanted to use the zinc for recommendations from the Triton method:


Zn: We recommend the corrective dosage of 1.77 ml for 1 day.
Zn: We recommend a daily maintenance dose of 0.18ml. If this dose is very low, then this can be alternatively be dosed weekly (daily dose x7).



I was considering using the Zn dry so I would not have to store a mixed solution

So If I was to use a scale, food scale, to weigh the Zn thee 240/500 =.48 gram

Corrective dosage: If I want 1.77ml I can do 1.77 x .48 = .8496 gram
Daily Dosage: .18ml I can do .18 x .48 = .0864 or 7 x for one week is .6048 gram


My scale weighs to the gram so I would need to estimate

Would I be playing with fire if I do just a 1 gram corrective dosage?

Also, every 2 weeks .6048 X 2 = 1.2096 just do 1 gram?
Would that stay close to the desired range?


If this is too much estimating do you have any suggestions for a scale that will weigh dry material in a quatity lower than a 1 gram?

Currently I weigh my salt when doing water changes, I use weight to weigh out the Randy 2 part that I use, and any other material that I can use a scale to measure additives.

Thanks
@Jimmyneptune Did you ever end up doing this? How did it work? I am embarking on doing the same to supplement the Reef MS method. Thx
 
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